Scripting: simpler reply buffer creation in luaRedisGenericCommand().
Scripting: simpler reply buffer creation in luaRedisGenericCommand().

It if faster to just create the string with a single sdsnewlen() call.
If c->bufpos is zero, the call will simply be like sdsemtpy().

190235047/redis,rogerlz/redis,hawkchch/redis,ncopa/redis,mattsta/redis,kmiku7/redis,alenslan/redis,davidradunz/redis,Wangyao14cyy/redis,mcanthony/redis,xlzhan/redis,mengyou0304/redis,taoguan/redis,JoeWoo/redis,soloestoy/redis,vincent-vivian-liu/redis,StevenTsai/redis,seppo0010/rlite-server,jasonkying/redis,harrisonfeng/redis,valdsJohn/redis,gilala/redis,LongXQ/redis,francischan714/redis,LongXQ/redis,pcarrier/redis,pedigree/redis,valdsJohn/redis,harrisonfeng/redis,pmem/redis,nuxeh/redis,holstvoogd/redis,zguangyu/redis,itamarhaber/redis,francischan714/redis,cnbin/redis,iandyh/redis,CodeJuan/redis,ytjiang/redis,roth1002/redis,Wangyao14cyy/redis,rouzier/redis,supasate/redis,thomasdarimont/redis,duanx/redis,MasahikoSawada/redis,csuhawk/redis,josiahcarlson/redis,mverrilli/redis,josiahcarlson/redis,harrisonfeng/redis,gilala/hredis,weizijun/redis,rogerlz/redis,ctripcorp/redis,gilala/redis,ncopa/redis,programmecat/redis,Wangyao14cyy/redis,jasonkying/redis,4396/redis,narma/redis,zhiliaoniu/redis,clamoriniere1A/redis,mengyou0304/redis,a-pavlov/redis,charsyam/redis,oranagra/redis,flashbuckets/redis,oranagra/redis,simplestbest/redis,ErikDubbelboer/redis,csuhawk/redis,neomantra/redis,holstvoogd/redis,tjschuck/redis,cloudrain21/redis,zhiliaoniu/redis,pkdevbox/redis,mgk/redis,zhiliaoniu/redis,wbailey5/redis,nuxeh/redis,kmiku7/redis,july2993/redis,colstrom/redis,citusdata/redis,RepmujNetsik/redis,gaoxianglong/redis,seppo0010/redis,tanghaodong25/redis,wujf/redis,saisai/redis,hornen/redis,modulexcite/redis,universsky/redis,mengyou0304/redis,tellapart/redis,Aliceljm1/redis,jingjidejuren/redis,linfangrong/redis,aim-for-better/redis,colstrom/redis,blackmady/redis,cloudrain21/redis,yossigo/redis,Sciumo/redis,dreamquster/redis,StevenTsai/redis,shreesundara/redis,fengshao0907/redis,saisai/redis,yuhc/redis-benchmark-enhanced,PradheepShrinivasan/redis,seppo0010/rlite-server,wbailey5/redis,hedisdb/hedis,GrimDerp/redis,ofirluzon/redis,iandyh/redis,zhcy/redis,gaoxianglong/redis,cloudrain21/redis,GrimDerp/redis,vincent-vivian-liu/redis,spinlock/redis,Wangyao14cyy/redis,saisai/redis,wprice/redis,CodeJuan/redis,rogerchina/redis,seandsky/redis,duanx/redis,SyntaxStacks/redis,zhiliaoniu/redis,kensou97/redis,jasonkying/redis,xlzhan/redis,xujunhai1991/redis,taoguan/redis,hedisdb/hedis,z-fork/redis,ton31337/redis,ofirluzon/redis,gaoxianglong/redis,takeshineshiro/redis,gilala/hredis,hornen/redis,soloestoy/redis,antirez/redis,csuhawk/redis,ErikDubbelboer/redis,kaushik94/redis,jingjidejuren/redis,roth1002/redis,yossigo/redis,j0hnma/hszredis,PKRoma/redis,rogerchina/redis,abhiklodh/redis,dreamquster/redis,shreesundara/redis,antirez/redis,Soledad89/redis,zczhuohuo/redis,YongMan/redis,arijitvt/redis,seandsky/redis,MasahikoSawada/redis,xlzhan/redis,JoeWoo/redis,wangyikai/redis,elkingtonmcb/redis,xlzhan/redis,davidradunz/redis,brg-liuwei/redis,universsky/redis,takeshineshiro/redis,csuhawk/redis,modulexcite/redis,mgk/redis,valdsJohn/redis,healerkx/redis,clamoriniere1A/redis,duanx/redis,mengzhejin/RedisStudy,ctripcorp/redis,ytjiang/redis,mingyaaaa/redis,sunheehnus/redis,iandyh/redis,elkingtonmcb/redis,timothyohare/3rdPartySrc-redis,soveran/redis,hawkchch/redis,itugs/redis,shreesundara/redis,wbailey5/redis,thomasdarimont/redis,devaos/redis,z-fork/redis,mgk/redis,rouzier/redis,seppo0010/rlite-server,ytjiang/redis,soloestoy/redis,gilala/redis,kaushik94/redis,honestme/redis,wprice/redis,dayuoba/redis,qiyang0221/redis,pcarrier/redis,cloudrain21/redis,izhoujie/redis,j0hnma/szredis,modulexcite/redis,ouyangkongtong/redis,ncopa/redis,flashbuckets/redis,OmarQunsul/graph-redis,Sciumo/redis,pcarrier/redis,tanghaodong25/redis,abhiklodh/redis,JoeWoo/redis,francischan714/redis,qiyang0221/redis,seppo0010/redis,YuanZhewei/redis,wangyikai/redis,july2993/redis,mcanthony/redis,GitHubMota/redis,MOON-CLJ/redis,huyuezheng/redis,SyntaxStacks/redis,pedigree/redis,SyntaxStacks/redis,mcanthony/redis,Markgorden/redis,JoeWoo/redis,j0hnma/szredis,rouzier/redis,gilala/hbjredis,oranagra/redis,CodeJuan/redis,brg-liuwei/redis,janekmi/redis,flashbuckets/redis,healerkx/redis,arijitvt/redis,AplayER/redis,zhcy/redis,rogerchina/redis,tellapart/redis,badboy/redis,netroby/redis,Aliceljm1/redis,tellapart/redis,ipmobiletech/redis,modulexcite/redis,ituncle/redis,mattsta/redis,HeartSaVioR/redis,hornen/redis,seppo0010/redis,itamarhaber/redis,pkdevbox/redis,atreeyang/redis,Soledad89/redis,soveran/redis,riyan8250/redis,qiyang0221/redis,atreeyang/redis,yossigo/redis,janekmi/redis,seandsky/redis,YuraLukashik/redis,nnog/redis,ouyangkongtong/redis,YongMan/redis,AALEKH/redis,honestme/redis,takeshineshiro/redis,badboy/redis,4396/redis,wenxueliu/redis_comment,YuraLukashik/redis,mgk/redis,SyntaxStacks/redis,roth1002/redis,neomantra/redis,AALEKH/redis,devaos/redis,sunheehnus/redis,itamarhaber/redis,hedisdb/hedis,YuraLukashik/redis,davidradunz/redis,roth1002/redis,citusdata/redis,SummonY/redis,ErikDubbelboer/redis,ctripcorp/redis,kaushik94/redis,RepmujNetsik/redis,netroby/redis,brg-liuwei/redis,YuanZhewei/redis,yuhc/redis-benchmark-enhanced,Markgorden/redis,gilala/redis,huyuezheng/redis,colstrom/redis,mingyaaaa/redis,allengaller/redis,shining-yang/redis,soveran/redis,wbailey5/redis,hedisdb/hedis,linfangrong/redis,hgl888/redis,zczhuohuo/redis,spinlock/redis,elkingtonmcb/redis,rouzier/redis,ipmobiletech/redis,4396/redis,cnbin/redis,YongMan/redis,dreamquster/redis,wujf/redis,abhiklodh/redis,mengzhejin/RedisStudy,weizijun/redis,ctripcorp/redis,yuhc/redis-benchmark-enhanced,mverrilli/redis,jackyan/redis,brg-liuwei/redis,cusspvz/redis,weizijun/redis,valdsJohn/redis,PradheepShrinivasan/redis,mengzhejin/RedisStudy,charsyam/redis,xujunhai1991/redis,PradheepShrinivasan/redis,allengaller/redis,fengshao0907/redis,YongMan/redis,zguangyu/redis,YuanZhewei/redis,timothyohare/3rdPartySrc-redis,wangyikai/redis,huyuezheng/redis,arijitvt/redis,kensou97/redis,blackmady/redis,Markgorden/redis,xuguruogu/redis,twskipper/redis,itamarhaber/redis,AplayER/redis,kensou97/redis,healerkx/redis,itugs/redis,gilala/bjredis,PradheepShrinivasan/redis,hgl888/redis,NBSW/redis,190235047/redis,aim-for-better/redis,rogerchina/redis,Soledad89/redis,HeartSaVioR/redis,mingyaaaa/redis,j0hnma/szredis,riyan8250/redis,gilala/hbjredis,ituncle/redis,SummonY/redis,PKRoma/redis,YuraLukashik/redis,shining-yang/redis,ncopa/redis,jasonkying/redis,blackmady/redis,GrimDerp/redis,wenxueliu/redis_comment,gilala/bjredis,guker/redis,zhcy/redis,Sciumo/redis,Aaron1992/redis,PKRoma/redis,timothyohare/3rdPartySrc-redis,colstrom/redis,ituncle/redis,healerkx/redis,supasate/redis,tjschuck/redis,mingyaaaa/redis,vincent-vivian-liu/redis,twskipper/redis,janekmi/redis,jingjidejuren/redis,programmecat/redis,h0x91b/redis,riyan8250/redis,shining-yang/redis,abhiklodh/redis,PKRoma/redis,AALEKH/redis,pcarrier/redis,devaos/redis,oranagra/redis,rogerlz/redis,ouyangkongtong/redis,timothyohare/3rdPartySrc-redis,takeshineshiro/redis,citusdata/redis,HeartSaVioR/redis,gilala/bjredis,LongXQ/redis,OmarQunsul/graph-redis,tanghaodong25/redis,zhcy/redis,thomasdarimont/redis,sunheehnus/redis,universsky/redis,xuguruogu/redis,holstvoogd/redis,clamoriniere1A/redis,fengshao0907/redis,pkdevbox/redis,mattsta/redis,pmem/redis,PKRoma/redis,soloestoy/redis,seppo0010/redis,yossigo/redis,rogerlz/redis,AplayER/redis,kmiku7/redis,h0x91b/redis,july2993/redis,ton31337/redis,dayuoba/redis,wprice/redis,netroby/redis,nuxeh/redis,nnog/redis,narma/redis,xuguruogu/redis,zczhuohuo/redis,wangyikai/redis,ErikDubbelboer/redis,CodeJuan/redis,StevenTsai/redis,MasahikoSawada/redis,qiyang0221/redis,clamoriniere1A/redis,mengzhejin/RedisStudy,riyan8250/redis,MOON-CLJ/redis,Aaron1992/redis,aim-for-better/redis,mumingv/redis,citusdata/redis,Aliceljm1/redis,kmiku7/redis,nuxeh/redis,Soledad89/redis,simplestbest/redis,antirez/redis,GrimDerp/redis,GitHubMota/redis,supasate/redis,iandyh/redis,cusspvz/redis,cusspvz/redis,OmarQunsul/graph-redis,badboy/redis,gilala/hredis,hawkchch/redis,honestme/redis,oranagra/redis,nnog/redis,atreeyang/redis,gaoxianglong/redis,supasate/redis,dayuoba/redis,YuanZhewei/redis,seppo0010/rlite-server,4396/redis,Aliceljm1/redis,ofirluzon/redis,linfangrong/redis,LongXQ/redis,charsyam/redis,atreeyang/redis,zczhuohuo/redis,OmarQunsul/graph-redis,cusspvz/redis,devaos/redis,mverrilli/redis,gilala/hredis,tanghaodong25/redis,j0hnma/hszredis,universsky/redis,shining-yang/redis,gilala/hbjredis,wenxueliu/redis_comment,neomantra/redis,holstvoogd/redis,kaushik94/redis,mverrilli/redis,pedigree/redis,mcanthony/redis,cnbin/redis,mengyou0304/redis,taoguan/redis,spinlock/redis,alenslan/redis,MasahikoSawada/redis,dayuoba/redis,Markgorden/redis,twskipper/redis,kensou97/redis,blackmady/redis,programmecat/redis,wenxueliu/redis_comment,allengaller/redis,zguangyu/redis,zguangyu/redis,yossigo/redis,seandsky/redis,guker/redis,wujf/redis,ofirluzon/redis,tjschuck/redis,ouyangkongtong/redis,RepmujNetsik/redis,harrisonfeng/redis,guker/redis,cnbin/redis,izhoujie/redis,pedigree/redis,NBSW/redis,soloestoy/redis,xujunhai1991/redis,yuhc/redis-benchmark-enhanced,honestme/redis,mumingv/redis,thomasdarimont/redis,z-fork/redis,ituncle/redis,alenslan/redis,ton31337/redis,izhoujie/redis,guker/redis,july2993/redis,h0x91b/redis,MOON-CLJ/redis,h0x91b/redis,charsyam/redis,taoguan/redis,janekmi/redis,a-pavlov/redis,mumingv/redis,ipmobiletech/redis,elkingtonmcb/redis,AALEKH/redis,190235047/redis,antirez/redis,NBSW/redis,j0hnma/szredis,Aaron1992/redis,charsyam/redis,Sciumo/redis,z-fork/redis,j0hnma/hszredis,jingjidejuren/redis,hgl888/redis,StevenTsai/redis,spinlock/redis,duanx/redis,vincent-vivian-liu/redis,NBSW/redis,sunheehnus/redis,narma/redis,allengaller/redis,gilala/hbjredis,wprice/redis,dreamquster/redis,hornen/redis,izhoujie/redis,pmem/redis,GitHubMota/redis,jackyan/redis,hawkchch/redis,shreesundara/redis,aim-for-better/redis,GitHubMota/redis,xuguruogu/redis,soveran/redis,190235047/redis,pkdevbox/redis,saisai/redis,pmem/redis,programmecat/redis,neomantra/redis,fengshao0907/redis,gilala/bjredis,linfangrong/redis,davidradunz/redis,arijitvt/redis,francischan714/redis,wujf/redis,neomantra/redis,tjschuck/redis,badboy/redis,twskipper/redis,RepmujNetsik/redis,a-pavlov/redis,ton31337/redis,a-pavlov/redis,simplestbest/redis,hgl888/redis,josiahcarlson/redis,simplestbest/redis,Aaron1992/redis,mumingv/redis,j0hnma/hszredis,AplayER/redis,huyuezheng/redis,nnog/redis,josiahcarlson/redis,weizijun/redis,itugs/redis,flashbuckets/redis,SummonY/redis,tellapart/redis,itugs/redis,jackyan/redis,alenslan/redis,ofirluzon/redis,jackyan/redis,ipmobiletech/redis,HeartSaVioR/redis,xujunhai1991/redis,netroby/redis,SummonY/redis,ytjiang/redis