Fix whitespace, unused imports and variables in cqlsh
Fix whitespace, unused imports and variables in cqlsh

pkdevbox/cassandra,yukim/cassandra,chbatey/cassandra-1,michaelmior/cassandra,Imran-C/cassandra,DikangGu/cassandra,aarushi12002/cassandra,mike-tr-adamson/cassandra,strapdata/cassandra,blerer/cassandra,iamaleksey/cassandra,scylladb/scylla-tools-java,belliottsmith/cassandra,fengshao0907/Cassandra-Research,aarushi12002/cassandra,WorksApplications/cassandra,ejankan/cassandra,clohfink/cassandra,xiongzheng/Cassandra-Research,JeremiahDJordan/cassandra,stef1927/cassandra,rdio/cassandra,szhou1234/cassandra,dongjiaqiang/cassandra,scylladb/scylla-tools-java,joesiewert/cassandra,carlyeks/cassandra,phact/cassandra,joesiewert/cassandra,stef1927/cassandra,jeffjirsa/cassandra,Imran-C/cassandra,darach/cassandra,RyanMagnusson/cassandra,codefollower/Cassandra-Research,scaledata/cassandra,aweisberg/cassandra,thobbs/cassandra,mt0803/cassandra,pauloricardomg/cassandra,snazy/cassandra,vaibhi9/cassandra,jkni/cassandra,blerer/cassandra,bcoverston/cassandra,likaiwalkman/cassandra,vramaswamy456/cassandra,mshuler/cassandra,aweisberg/cassandra,blambov/cassandra,swps/cassandra,blambov/cassandra,bcoverston/cassandra,swps/cassandra,ifesdjeen/cassandra,jeromatron/cassandra,pcn/cassandra-1,aureagle/cassandra,apache/cassandra,michaelmior/cassandra,weideng1/cassandra,michaelmior/cassandra,krummas/cassandra,cooldoger/cassandra,ifesdjeen/cassandra,yangzhe1991/cassandra,helena/cassandra,chaordic/cassandra,boneill42/cassandra,weideng1/cassandra,aboudreault/cassandra,sedulam/CASSANDRA-12201,modempachev4/kassandra,yhnishi/cassandra,modempachev4/kassandra,sluk3r/cassandra,ejankan/cassandra,sluk3r/cassandra,blambov/cassandra,carlyeks/cassandra,Jaumo/cassandra,exoscale/cassandra,jasonwee/cassandra,GabrielNicolasAvellaneda/cassandra,sharvanath/cassandra,beobal/cassandra,juiceblender/cassandra,chbatey/cassandra-1,exoscale/cassandra,iamaleksey/cassandra,yonglehou/cassandra,ollie314/cassandra,wreda/cassandra,strapdata/cassandra,mashuai/Cassandra-Research,strapdata/cassandra,fengshao0907/Cassandra-Research,rmarchei/cassandra,rdio/cassandra,codefollower/Cassandra-Research,mambocab/cassandra,krummas/cassandra,kgreav/cassandra,belliottsmith/cassandra,whitepages/cassandra,MasahikoSawada/cassandra,likaiwalkman/cassandra,jsanda/cassandra,spodkowinski/cassandra,a-buck/cassandra,nutbunnies/cassandra,ptuckey/cassandra,snazy/cassandra,mheffner/cassandra-1,bcoverston/cassandra,ptnapoleon/cassandra,fengshao0907/cassandra-1,yonglehou/cassandra,WorksApplications/cassandra,beobal/cassandra,kgreav/cassandra,AtwooTM/cassandra,bpupadhyaya/cassandra,scaledata/cassandra,cooldoger/cassandra,Instagram/cassandra,chaordic/cassandra,clohfink/cassandra,yangzhe1991/cassandra,caidongyun/cassandra,helena/cassandra,instaclustr/cassandra,yhnishi/cassandra,jasobrown/cassandra,tongjixianing/projects,codefollower/Cassandra-Research,pcmanus/cassandra,JeremiahDJordan/cassandra,helena/cassandra,vaibhi9/cassandra,josh-mckenzie/cassandra,tjake/cassandra,adelapena/cassandra,blambov/cassandra,chaordic/cassandra,iburmistrov/Cassandra,Jollyplum/cassandra,yanbit/cassandra,RyanMagnusson/cassandra,ptuckey/cassandra,rdio/cassandra,hengxin/cassandra,guard163/cassandra,adejanovski/cassandra,pofallon/cassandra,stef1927/cassandra,bmel/cassandra,xiongzheng/Cassandra-Research,swps/cassandra,boneill42/cassandra,hhorii/cassandra,emolsson/cassandra,jbellis/cassandra,wreda/cassandra,juiceblender/cassandra,tjake/cassandra,pauloricardomg/cassandra,jrwest/cassandra,jeromatron/cassandra,strapdata/cassandra,jrwest/cassandra,pcmanus/cassandra,weideng1/cassandra,ptuckey/cassandra,a-buck/cassandra,belliottsmith/cassandra,darach/cassandra,pkdevbox/cassandra,szhou1234/cassandra,kgreav/cassandra,krummas/cassandra,pofallon/cassandra,mshuler/cassandra,pcmanus/cassandra,macintoshio/cassandra,AtwooTM/cassandra,vramaswamy456/cassandra,ptnapoleon/cassandra,aarushi12002/cassandra,sedulam/CASSANDRA-12201,bcoverston/cassandra,jkni/cassandra,mt0803/cassandra,mheffner/cassandra-1,nitsanw/cassandra,nitsanw/cassandra,hhorii/cassandra,mike-tr-adamson/cassandra,pallavi510/cassandra,mt0803/cassandra,nutbunnies/cassandra,guard163/cassandra,joesiewert/cassandra,adejanovski/cassandra,DICL/cassandra,pauloricardomg/cassandra,fengshao0907/Cassandra-Research,weipinghe/cassandra,bdeggleston/cassandra,driftx/cassandra,exoscale/cassandra,yanbit/cassandra,GabrielNicolasAvellaneda/cassandra,juiceblender/cassandra,tongjixianing/projects,jasobrown/cassandra,josh-mckenzie/cassandra,tommystendahl/cassandra,dkua/cassandra,rogerchina/cassandra,stef1927/cassandra,bpupadhyaya/cassandra,tjake/cassandra,mkjellman/cassandra,jrwest/cassandra,driftx/cassandra,ejankan/cassandra,szhou1234/cassandra,jasonstack/cassandra,instaclustr/cassandra,pthomaid/cassandra,spodkowinski/cassandra,tongjixianing/projects,clohfink/cassandra,vaibhi9/cassandra,sharvanath/cassandra,WorksApplications/cassandra,michaelsembwever/cassandra,dongjiaqiang/cassandra,tjake/cassandra,AtwooTM/cassandra,mike-tr-adamson/cassandra,mambocab/cassandra,blerer/cassandra,WorksApplications/cassandra,mshuler/cassandra,jasonstack/cassandra,driftx/cassandra,iburmistrov/Cassandra,beobal/cassandra,asias/cassandra,cooldoger/cassandra,mshuler/cassandra,beobal/cassandra,tommystendahl/cassandra,JeremiahDJordan/cassandra,yangzhe1991/cassandra,MasahikoSawada/cassandra,yhnishi/cassandra,iamaleksey/cassandra,jsanda/cassandra,ben-manes/cassandra,bmel/cassandra,DikangGu/cassandra,whitepages/cassandra,thobbs/cassandra,clohfink/cassandra,sivikt/cassandra,instaclustr/cassandra,jasonwee/cassandra,jrwest/cassandra,macintoshio/cassandra,jkni/cassandra,vramaswamy456/cassandra,carlyeks/cassandra,sivikt/cassandra,pthomaid/cassandra,asias/cassandra,aboudreault/cassandra,jasonwee/cassandra,aureagle/cassandra,asias/cassandra,sluk3r/cassandra,GabrielNicolasAvellaneda/cassandra,apache/cassandra,regispl/cassandra,nitsanw/cassandra,a-buck/cassandra,adelapena/cassandra,mambocab/cassandra,knifewine/cassandra,yukim/cassandra,boneill42/cassandra,szhou1234/cassandra,Imran-C/cassandra,hhorii/cassandra,sedulam/CASSANDRA-12201,christian-esken/cassandra,pofallon/cassandra,ptnapoleon/cassandra,snazy/cassandra,apache/cassandra,thelastpickle/cassandra,bdeggleston/cassandra,mkjellman/cassandra,christian-esken/cassandra,aweisberg/cassandra,bmel/cassandra,chbatey/cassandra-1,regispl/cassandra,thelastpickle/cassandra,aweisberg/cassandra,mheffner/cassandra-1,jsanda/cassandra,bdeggleston/cassandra,yukim/cassandra,snazy/cassandra,belliottsmith/cassandra,josh-mckenzie/cassandra,spodkowinski/cassandra,RyanMagnusson/cassandra,bdeggleston/cassandra,mike-tr-adamson/cassandra,Jollyplum/cassandra,weipinghe/cassandra,adelapena/cassandra,mkjellman/cassandra,christian-esken/cassandra,rmarchei/cassandra,DICL/cassandra,phact/cassandra,pallavi510/cassandra,pallavi510/cassandra,yanbit/cassandra,DikangGu/cassandra,josh-mckenzie/cassandra,jeffjirsa/cassandra,adelapena/cassandra,scylladb/scylla-tools-java,phact/cassandra,thelastpickle/cassandra,fengshao0907/cassandra-1,jbellis/cassandra,mkjellman/cassandra,Instagram/cassandra,kgreav/cassandra,jbellis/cassandra,MasahikoSawada/cassandra,Instagram/cassandra,michaelsembwever/cassandra,newrelic-forks/cassandra,tommystendahl/cassandra,michaelsembwever/cassandra,wreda/cassandra,jasonstack/cassandra,dkua/cassandra,macintoshio/cassandra,fengshao0907/cassandra-1,knifewine/cassandra,Instagram/cassandra,jeromatron/cassandra,ollie314/cassandra,Jaumo/cassandra,sivikt/cassandra,iburmistrov/Cassandra,blerer/cassandra,hengxin/cassandra,knifewine/cassandra,pcn/cassandra-1,ben-manes/cassandra,jeffjirsa/cassandra,pauloricardomg/cassandra,krummas/cassandra,caidongyun/cassandra,mashuai/Cassandra-Research,scaledata/cassandra,xiongzheng/Cassandra-Research,tommystendahl/cassandra,caidongyun/cassandra,aboudreault/cassandra,thelastpickle/cassandra,adejanovski/cassandra,Jaumo/cassandra,aureagle/cassandra,jeffjirsa/cassandra,juiceblender/cassandra,guard163/cassandra,whitepages/cassandra,newrelic-forks/cassandra,thobbs/cassandra,dongjiaqiang/cassandra,spodkowinski/cassandra,emolsson/cassandra,newrelic-forks/cassandra,driftx/cassandra,Jollyplum/cassandra,ifesdjeen/cassandra,likaiwalkman/cassandra,michaelsembwever/cassandra,regispl/cassandra,jasobrown/cassandra,nutbunnies/cassandra,rmarchei/cassandra,yonglehou/cassandra,ollie314/cassandra,weipinghe/cassandra,pthomaid/cassandra,hengxin/cassandra,instaclustr/cassandra,rogerchina/cassandra,ben-manes/cassandra,dkua/cassandra,DICL/cassandra,scylladb/scylla-tools-java,pcn/cassandra-1,bpupadhyaya/cassandra,jasobrown/cassandra,mashuai/Cassandra-Research,cooldoger/cassandra,darach/cassandra,sharvanath/cassandra,emolsson/cassandra,yukim/cassandra,apache/cassandra,pkdevbox/cassandra,rogerchina/cassandra,iamaleksey/cassandra,ifesdjeen/cassandra,modempachev4/kassandra