[SPARK-3192] Some scripts have 2 space indentation but other scripts have 4 space indentation.
[SPARK-3192] Some scripts have 2 space indentation but other scripts have 4 space indentation.

Author: Kousuke Saruta <sarutak@oss.nttdata.co.jp>

Closes #2104 from sarutak/SPARK-3192 and squashes the following commits:

db78419 [Kousuke Saruta] Modified indentation of spark-shell

WindCanDie/spark,HyukjinKwon/spark,mahak/spark,rekhajoshm/spark,xflin/spark,nlalevee/spark,patrick-nicholson/spark,map222/spark,dhruve/spark,patrick-nicholson/spark,highfei2011/spark,debugger87/spark,patrick-nicholson/spark,BryanCutler/spark,hhbyyh/spark,nlalevee/spark,poffuomo/spark,bdrillard/spark,UndeadBaneGitHub/spark,ptkool/spark,zhouyejoe/spark,SnappyDataInc/spark,rekhajoshm/spark,ddna1021/spark,adrian-ionescu/apache-spark,WeichenXu123/spark,cin/spark,nilsgrabbert/spark,skonto/spark,JoshRosen/spark,haowu80s/spark,debugger87/spark,zzcclp/spark,ericvandenbergfb/spark,joseph-torres/spark,panfengfeng/spark,LantaoJin/spark,ericvandenbergfb/spark,poffuomo/spark,WeichenXu123/spark,skonto/spark,matthewfranglen/spark,ron8hu/spark,big-pegasus/spark,wzhfy/spark,sureshthalamati/spark,apache-spark-on-k8s/spark,dhruve/spark,tejasapatil/spark,srowen/spark,adrian-ionescu/apache-spark,witgo/spark,setjet/spark,bdrillard/spark,Aegeaner/spark,esi-mineset/spark,1haodian/spark,actuaryzhang/spark,rezasafi/spark,saturday-shi/spark,tengpeng/spark,srowen/spark,ibm-research-ireland/sparkoscope,Aegeaner/spark,dhruve/spark,dongjoon-hyun/spark,kimoonkim/spark,tengpeng/spark,WeichenXu123/spark,poffuomo/spark,facaiy/spark,holdenk/spark,jrshust/spark,publicRoman/spark,witgo/spark,srowen/spark,cloud-fan/spark,lxsmnv/spark,guoxiaolongzte/spark,UndeadBaneGitHub/spark,WeichenXu123/spark,BryanCutler/spark,aokolnychyi/spark,gengliangwang/spark,techaddict/spark,highfei2011/spark,mdespriee/spark,minixalpha/spark,ioana-delaney/spark,publicRoman/spark,poffuomo/spark,bdrillard/spark,techaddict/spark,patrick-nicholson/spark,big-pegasus/spark,zhouyejoe/spark,big-pegasus/spark,ptkool/spark,rezasafi/spark,wzhfy/spark,narahari92/spark,darionyaphet/spark,MLnick/spark,kevinyu98/spark,mike0sv/spark,panfengfeng/spark,map222/spark,markhamstra/spark,andrewor14/iolap,michalsenkyr/spark,lxsmnv/spark,mzl9039/spark,xuanyuanking/spark,icexelloss/spark,rikima/spark,sachintyagi22/spark,nchammas/spark,BryanCutler/spark,someorz/spark,kimoonkim/spark,hhbyyh/spark,ueshin/apache-spark,stanzhai/spark,taroplus/spark,panfengfeng/spark,actuaryzhang/spark,patrick-nicholson/spark,darionyaphet/spark,nchammas/spark,kevinyu98/spark,rednaxelafx/apache-spark,dhruve/spark,JoshRosen/spark,kiszk/spark,ericvandenbergfb/spark,ConeyLiu/spark,andrewor14/spark,andrewor14/iolap,srowen/spark,actuaryzhang/spark,mahak/spark,JoshRosen/spark,nchammas/spark,wangmiao1981/spark,wangyum/spark,maropu/spark,mike0sv/spark,apache/spark,rikima/spark,zuotingbing/spark,zhouyejoe/spark,highfei2011/spark,srowen/spark,jianran/spark,ahnqirage/spark,dongjoon-hyun/spark,poffuomo/spark,xflin/spark,goldmedal/spark,alunarbeach/spark,lxsmnv/spark,lvdongr/spark,gengliangwang/spark,JerryLead/spark,brad-kaiser/spark,rednaxelafx/apache-spark,spark-test/spark,aray/spark,lxsmnv/spark,ioana-delaney/spark,aokolnychyi/spark,zero323/spark,ioana-delaney/spark,skonto/spark,setjet/spark,jlopezmalla/spark,ajaysaini725/spark,HyukjinKwon/spark,kimoonkim/spark,maropu/spark,1haodian/spark,liutang123/spark,dongjoon-hyun/spark,dbtsai/spark,rednaxelafx/apache-spark,wangyum/spark,apache/spark,actuaryzhang/spark,goldmedal/spark,jkbradley/spark,pgandhi999/spark,someorz/spark,debugger87/spark,poffuomo/spark,witgo/spark,darionyaphet/spark,rezasafi/spark,apache/spark,pgandhi999/spark,bravo-zhang/spark,minixalpha/spark,rekhajoshm/spark,JerryLead/spark,jlopezmalla/spark,hvanhovell/spark,jianran/spark,zzcclp/spark,mdespriee/spark,SnappyDataInc/spark,xuanyuanking/spark,jkbradley/spark,alunarbeach/spark,xflin/spark,ahnqirage/spark,cin/spark,yanboliang/spark,ron8hu/spark,liutang123/spark,wangyum/spark,jianran/spark,mdespriee/spark,aosagie/spark,wzhfy/spark,panfengfeng/spark,hvanhovell/spark,bOOm-X/spark,maropu/spark,JerryLead/spark,eyalfa/spark,milliman/spark,shaneknapp/spark,Panos-Bletsos/spark-cost-model-optimizer,lvdongr/spark,jlopezmalla/spark,MLnick/spark,holdenk/spark,big-pegasus/spark,bdrillard/spark,michalsenkyr/spark,shuangshuangwang/spark,yanboliang/spark,ron8hu/spark,apache-spark-on-k8s/spark,techaddict/spark,markhamstra/spark,eyalfa/spark,esi-mineset/spark,ioana-delaney/spark,ibm-research-ireland/sparkoscope,goldmedal/spark,xflin/spark,Panos-Bletsos/spark-cost-model-optimizer,shuangshuangwang/spark,map222/spark,highfei2011/spark,haowu80s/spark,actuaryzhang/spark,ioana-delaney/spark,kevinyu98/spark,hvanhovell/spark,loneknightpy/spark,xuanyuanking/spark,shaneknapp/spark,jlopezmalla/spark,ajaysaini725/spark,skonto/spark,nchammas/spark,JerryLead/spark,metamx/spark,BryanCutler/spark,janewangfb/spark,huang1900/spark,yanboliang/spark,zzcclp/spark,bOOm-X/spark,saltstar/spark,LantaoJin/spark,gengliangwang/spark,ron8hu/spark,liyichao/spark,dongjoon-hyun/spark,esi-mineset/spark,minixalpha/spark,shaneknapp/spark,stanzhai/spark,wangmiao1981/spark,JerryLead/spark,liutang123/spark,stanzhai/spark,Aegeaner/spark,HyukjinKwon/spark,tengpeng/spark,witgo/spark,saturday-shi/spark,bravo-zhang/spark,tejasapatil/spark,cloud-fan/spark,darionyaphet/spark,setjet/spark,jrshust/spark,taroplus/spark,rikima/spark,dhruve/spark,saltstar/spark,LantaoJin/spark,adrian-ionescu/apache-spark,michalsenkyr/spark,icexelloss/spark,minixalpha/spark,ptkool/spark,lxsmnv/spark,debugger87/spark,dbtsai/spark,highfei2011/spark,map222/spark,rikima/spark,brad-kaiser/spark,dhruve/spark,aray/spark,ahnqirage/spark,ptkool/spark,JoshRosen/spark,icexelloss/spark,wangyum/spark,pronix/spark,mahak/spark,kissmetrics/spark,ahnqirage/spark,jianran/spark,rekhajoshm/spark,skonto/spark,loneknightpy/spark,spark-test/spark,someorz/spark,ddna1021/spark,shaneknapp/spark,liyichao/spark,loneknightpy/spark,LantaoJin/spark,ptkool/spark,holdenk/spark,rekhajoshm/spark,cin/spark,LantaoJin/spark,gioenn/xSpark,MLnick/spark,kiszk/spark,wangyum/spark,saturday-shi/spark,liyichao/spark,ron8hu/spark,aosagie/spark,shuangshuangwang/spark,mdespriee/spark,andrewor14/iolap,sachintyagi22/spark,hvanhovell/spark,metamx/spark,debugger87/spark,ahnqirage/spark,guoxiaolongzte/spark,eyalfa/spark,mike0sv/spark,ueshin/apache-spark,WindCanDie/spark,nchammas/spark,ibm-research-ireland/sparkoscope,aray/spark,dongjoon-hyun/spark,eyalfa/spark,bdrillard/spark,mzl9039/spark,janewangfb/spark,apache/spark,wangmiao1981/spark,SHASHANKB/spark,brad-kaiser/spark,markhamstra/spark,michalsenkyr/spark,jkbradley/spark,bOOm-X/spark,map222/spark,adrian-ionescu/apache-spark,stanzhai/spark,adrian-ionescu/apache-spark,sachintyagi22/spark,Panos-Bletsos/spark-cost-model-optimizer,goldmedal/spark,xuanyuanking/spark,nlalevee/spark,jiangxb1987/spark,saltstar/spark,alunarbeach/spark,wangyum/spark,kevinyu98/spark,stanzhai/spark,bOOm-X/spark,cloud-fan/spark,icexelloss/spark,ericvandenbergfb/spark,holdenk/spark,darionyaphet/spark,wangmiao1981/spark,adrian-ionescu/apache-spark,aosagie/spark,milliman/spark,sahilTakiar/spark,joseph-torres/spark,michalsenkyr/spark,wzhfy/spark,panfengfeng/spark,zero323/spark,rednaxelafx/apache-spark,facaiy/spark,nilsgrabbert/spark,aokolnychyi/spark,sureshthalamati/spark,sachintyagi22/spark,metamx/spark,jiangxb1987/spark,jrshust/spark,akopich/spark,milliman/spark,byakuinss/spark,WeichenXu123/spark,witgo/spark,gioenn/xSpark,kevinyu98/spark,aosagie/spark,rezasafi/spark,kissmetrics/spark,saltstar/spark,WindCanDie/spark,gengliangwang/spark,pronix/spark,pronix/spark,jkbradley/spark,jlopezmalla/spark,gioenn/xSpark,publicRoman/spark,BryanCutler/spark,1haodian/spark,guoxiaolongzte/spark,caneGuy/spark,vinodkc/spark,esi-mineset/spark,vinodkc/spark,ajaysaini725/spark,nchammas/spark,narahari92/spark,sureshthalamati/spark,sureshthalamati/spark,bravo-zhang/spark,tengpeng/spark,mdespriee/spark,saturday-shi/spark,gengliangwang/spark,bOOm-X/spark,milliman/spark,aokolnychyi/spark,xuanyuanking/spark,map222/spark,szhem/spark,darionyaphet/spark,HyukjinKwon/spark,ericvandenbergfb/spark,kiszk/spark,vinodkc/spark,hvanhovell/spark,jiangxb1987/spark,rekhajoshm/spark,saturday-shi/spark,metamx/spark,aray/spark,andrewor14/spark,shubhamchopra/spark,darionyaphet/spark,huang1900/spark,janewangfb/spark,facaiy/spark,wzhfy/spark,alunarbeach/spark,ddna1021/spark,xuanyuanking/spark,aray/spark,sahilTakiar/spark,rezasafi/spark,skonto/spark,dongjoon-hyun/spark,liyichao/spark,guoxiaolongzte/spark,Aegeaner/spark,SHASHANKB/spark,ddna1021/spark,SHASHANKB/spark,spark-test/spark,hvanhovell/spark,spark-test/spark,Panos-Bletsos/spark-cost-model-optimizer,byakuinss/spark,JoshRosen/spark,liutang123/spark,kiszk/spark,dbtsai/spark,huang1900/spark,shubhamchopra/spark,zhouyejoe/spark,hhbyyh/spark,nlalevee/spark,publicRoman/spark,lxsmnv/spark,SHASHANKB/spark,liyichao/spark,haowu80s/spark,SHASHANKB/spark,shaneknapp/spark,chuckchen/spark,ConeyLiu/spark,mzl9039/spark,jkbradley/spark,icexelloss/spark,dbtsai/spark,UndeadBaneGitHub/spark,nlalevee/spark,UndeadBaneGitHub/spark,nilsgrabbert/spark,BryanCutler/spark,sahilTakiar/spark,lvdongr/spark,minixalpha/spark,icexelloss/spark,bOOm-X/spark,ioana-delaney/spark,janewangfb/spark,hhbyyh/spark,rikima/spark,byakuinss/spark,shubhamchopra/spark,bdrillard/spark,joseph-torres/spark,kissmetrics/spark,mike0sv/spark,guoxiaolongzte/spark,lxsmnv/spark,cloud-fan/spark,apache-spark-on-k8s/spark,gioenn/xSpark,tejasapatil/spark,yanboliang/spark,liutang123/spark,1haodian/spark,mzl9039/spark,jkbradley/spark,jlopezmalla/spark,shubhamchopra/spark,jiangxb1987/spark,setjet/spark,bravo-zhang/spark,xuanyuanking/spark,techaddict/spark,caneGuy/spark,mzl9039/spark,jiangxb1987/spark,brad-kaiser/spark,ddna1021/spark,nlalevee/spark,chuckchen/spark,mike0sv/spark,huang1900/spark,taroplus/spark,zero323/spark,big-pegasus/spark,wangyum/spark,panfengfeng/spark,byakuinss/spark,lvdongr/spark,sachintyagi22/spark,bdrillard/spark,adrian-ionescu/apache-spark,hvanhovell/spark,pgandhi999/spark,nilsgrabbert/spark,JerryLead/spark,shuangshuangwang/spark,zero323/spark,mdespriee/spark,markhamstra/spark,dbtsai/spark,pgandhi999/spark,jkbradley/spark,srowen/spark,ajaysaini725/spark,ptkool/spark,alunarbeach/spark,vinodkc/spark,tejasapatil/spark,rikima/spark,akopich/spark,Panos-Bletsos/spark-cost-model-optimizer,yanboliang/spark,UndeadBaneGitHub/spark,UndeadBaneGitHub/spark,actuaryzhang/spark,goldmedal/spark,sahilTakiar/spark,mahak/spark,shaneknapp/spark,wzhfy/spark,zero323/spark,ahnqirage/spark,wangmiao1981/spark,bOOm-X/spark,techaddict/spark,cin/spark,aokolnychyi/spark,markhamstra/spark,akopich/spark,MLnick/spark,huang1900/spark,xflin/spark,publicRoman/spark,minixalpha/spark,kissmetrics/spark,holdenk/spark,hhbyyh/spark,skonto/spark,poffuomo/spark,pronix/spark,bravo-zhang/spark,alunarbeach/spark,bravo-zhang/spark,someorz/spark,mike0sv/spark,tengpeng/spark,tengpeng/spark,shubhamchopra/spark,jianran/spark,caneGuy/spark,rikima/spark,tejasapatil/spark,liyichao/spark,ajaysaini725/spark,apache-spark-on-k8s/spark,kevinyu98/spark,byakuinss/spark,HyukjinKwon/spark,witgo/spark,zhouyejoe/spark,srowen/spark,WindCanDie/spark,alunarbeach/spark,WeichenXu123/spark,holdenk/spark,shuangshuangwang/spark,hhbyyh/spark,eyalfa/spark,zhouyejoe/spark,maropu/spark,ueshin/apache-spark,1haodian/spark,big-pegasus/spark,MLnick/spark,ioana-delaney/spark,zzcclp/spark,vinodkc/spark,facaiy/spark,ahnqirage/spark,caneGuy/spark,goldmedal/spark,shubhamchopra/spark,maropu/spark,rednaxelafx/apache-spark,icexelloss/spark,eyalfa/spark,xflin/spark,narahari92/spark,vinodkc/spark,saltstar/spark,joseph-torres/spark,ddna1021/spark,gioenn/xSpark,ron8hu/spark,jiangxb1987/spark,SHASHANKB/spark,maropu/spark,aosagie/spark,loneknightpy/spark,pronix/spark,janewangfb/spark,guoxiaolongzte/spark,narahari92/spark,chuckchen/spark,mzl9039/spark,debugger87/spark,kissmetrics/spark,ueshin/apache-spark,pgandhi999/spark,ueshin/apache-spark,loneknightpy/spark,akopich/spark,ConeyLiu/spark,dhruve/spark,1haodian/spark,SnappyDataInc/spark,shubhamchopra/spark,mike0sv/spark,saturday-shi/spark,joseph-torres/spark,yanboliang/spark,LantaoJin/spark,SHASHANKB/spark,brad-kaiser/spark,kissmetrics/spark,aokolnychyi/spark,MLnick/spark,taroplus/spark,debugger87/spark,loneknightpy/spark,andrewor14/spark,HyukjinKwon/spark,caneGuy/spark,Aegeaner/spark,zuotingbing/spark,actuaryzhang/spark,vinodkc/spark,aokolnychyi/spark,kimoonkim/spark,facaiy/spark,goldmedal/spark,mdespriee/spark,xflin/spark,saltstar/spark,jrshust/spark,narahari92/spark,nilsgrabbert/spark,huang1900/spark,kimoonkim/spark,highfei2011/spark,mahak/spark,publicRoman/spark,shuangshuangwang/spark,JoshRosen/spark,someorz/spark,chuckchen/spark,pronix/spark,saltstar/spark,sureshthalamati/spark,hhbyyh/spark,ibm-research-ireland/sparkoscope,byakuinss/spark,kiszk/spark,WeichenXu123/spark,techaddict/spark,pgandhi999/spark,andrewor14/spark,witgo/spark,andrewor14/spark,setjet/spark,loneknightpy/spark,1haodian/spark,kevinyu98/spark,haowu80s/spark,chuckchen/spark,BryanCutler/spark,markhamstra/spark,narahari92/spark,milliman/spark,highfei2011/spark,taroplus/spark,wzhfy/spark,WindCanDie/spark,sahilTakiar/spark,huang1900/spark,sahilTakiar/spark,taroplus/spark,metamx/spark,setjet/spark,haowu80s/spark,aosagie/spark,tejasapatil/spark,panfengfeng/spark,dbtsai/spark,JoshRosen/spark,ueshin/apache-spark,sachintyagi22/spark,cin/spark,taroplus/spark,wangmiao1981/spark,cloud-fan/spark,maropu/spark,kimoonkim/spark,esi-mineset/spark,michalsenkyr/spark,spark-test/spark,SnappyDataInc/spark,ddna1021/spark,techaddict/spark,aray/spark,jianran/spark,SnappyDataInc/spark,zuotingbing/spark,nilsgrabbert/spark,MLnick/spark,apache-spark-on-k8s/spark,rezasafi/spark,UndeadBaneGitHub/spark,andrewor14/iolap,jrshust/spark,mzl9039/spark,apache-spark-on-k8s/spark,ueshin/apache-spark,lvdongr/spark,ibm-research-ireland/sparkoscope,Aegeaner/spark,pgandhi999/spark,shuangshuangwang/spark,zero323/spark,milliman/spark,jrshust/spark,tejasapatil/spark,cin/spark,narahari92/spark,HyukjinKwon/spark,stanzhai/spark,szhem/spark,liutang123/spark,wangmiao1981/spark,facaiy/spark,cloud-fan/spark,lvdongr/spark,zuotingbing/spark,chuckchen/spark,kiszk/spark,janewangfb/spark,setjet/spark,apache-spark-on-k8s/spark,rednaxelafx/apache-spark,gengliangwang/spark,spark-test/spark,cloud-fan/spark,zuotingbing/spark,kiszk/spark,kimoonkim/spark,bravo-zhang/spark,ConeyLiu/spark,sachintyagi22/spark,aosagie/spark,liutang123/spark,rezasafi/spark,byakuinss/spark,akopich/spark,ConeyLiu/spark,map222/spark,brad-kaiser/spark,aray/spark,ibm-research-ireland/sparkoscope,cin/spark,dongjoon-hyun/spark,yanboliang/spark,patrick-nicholson/spark,esi-mineset/spark,jrshust/spark,zzcclp/spark,publicRoman/spark,nchammas/spark,WindCanDie/spark,szhem/spark,szhem/spark,minixalpha/spark,michalsenkyr/spark,facaiy/spark,SnappyDataInc/spark,sureshthalamati/spark,ron8hu/spark,ibm-research-ireland/sparkoscope,apache/spark,janewangfb/spark,WindCanDie/spark,sahilTakiar/spark,Panos-Bletsos/spark-cost-model-optimizer,holdenk/spark,apache/spark,andrewor14/iolap,milliman/spark,lvdongr/spark,zzcclp/spark,Aegeaner/spark,Panos-Bletsos/spark-cost-model-optimizer,nilsgrabbert/spark,JerryLead/spark,chuckchen/spark,spark-test/spark,stanzhai/spark,guoxiaolongzte/spark,haowu80s/spark,markhamstra/spark,metamx/spark,tengpeng/spark,andrewor14/spark,andrewor14/iolap,caneGuy/spark,zuotingbing/spark,big-pegasus/spark,ajaysaini725/spark,zhouyejoe/spark,dbtsai/spark,gioenn/xSpark,liyichao/spark,joseph-torres/spark,andrewor14/iolap,LantaoJin/spark,SnappyDataInc/spark,zero323/spark,jiangxb1987/spark,akopich/spark,ptkool/spark,zzcclp/spark,akopich/spark,ericvandenbergfb/spark,ericvandenbergfb/spark,rednaxelafx/apache-spark,gioenn/xSpark,eyalfa/spark,gengliangwang/spark,brad-kaiser/spark,metamx/spark,esi-mineset/spark,someorz/spark,nlalevee/spark,sureshthalamati/spark,shaneknapp/spark,ajaysaini725/spark,mahak/spark,someorz/spark,szhem/spark,zuotingbing/spark,patrick-nicholson/spark,rekhajoshm/spark,caneGuy/spark,jianran/spark,saturday-shi/spark,joseph-torres/spark,andrewor14/spark,apache/spark,ConeyLiu/spark,szhem/spark,ConeyLiu/spark,szhem/spark,mahak/spark,kissmetrics/spark,jlopezmalla/spark