Hopefully better sort.c optimization comments.
Hopefully better sort.c optimization comments.

Related to #2346.

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