CONFIG REWRITE: don't wipe unknown options.
CONFIG REWRITE: don't wipe unknown options.

With this commit options not explicitly rewritten by CONFIG REWRITE are
not touched at all. These include new options that may not have support
for REWRITE, and other special cases like rename-command and include.

slfs007/mk-redis,antirez/redis,ytjiang/redis,wenxueliu/redis_comment,LongXQ/redis,davidradunz/redis,yybirdcf/learn-redis,charsyam/redis,valdsJohn/redis,supasate/redis,mgk/redis,citusdata/redis,OmarQunsul/graph-redis,janekmi/redis,weizijun/redis,seandsky/redis,flashbuckets/redis,charsyam/redis,supasate/redis,fengshao0907/redis,HouKangkang/redis-3.0-annotated,cloudrain21/redis,mgk/redis,mumingv/redis-3.0-annotated,PradheepShrinivasan/redis,jasonkying/redis,huyuezheng/redis,Wangyao14cyy/redis,ksarch-saas/redis,jingjidejuren/redis,harrisonfeng/redis,190235047/redis,jasonkying/redis,ErikDubbelboer/redis,spearhead-ea/redis,GitHubMota/redis,OmarQunsul/graph-redis,timothyohare/3rdPartySrc-redis,h0x91b/redis,universsky/redis,alenslan/redis,zhaobo1023/redis-3.0-annotated,j0hnma/hszredis,wuyu201321060203/redis-3.0-annotated,hornen/redis,ncopa/redis,ytjiang/redis,GitHubMota/redis,netroby/redis,flashbuckets/redis,wuyu201321060203/redis-3.0-annotated,mattsta/redis,yossigo/redis,abhiklodh/redis,neomantra/redis,PKRoma/redis,programmecat/redis,slfs007/mk-redis,wbailey5/redis,gilala/hredis,GitHubMota/redis,jingjidejuren/redis,Markgorden/redis,valdsJohn/redis,yossigo/redis,francischan714/redis,oranagra/redis,sunlianqiang/redis-3.0-annotated,zhoudayang/redis,yybirdcf/learn-redis,moonbingbing/redis-3.0-annotated,zczhuohuo/redis,badboy/redis,4396/redis,ksarch-saas/redis,zguangyu/redis,clamoriniere1A/redis,wprice/redis,pkdevbox/redis,hawkchch/redis,flashbuckets/redis,wuyu201321060203/redis-3.0-annotated,ramonsnir/redis,j0hnma/szredis,xujunhai1991/redis,rogerlz/redis,NBSW/redis,neomantra/redis,pcarrier/redis,xujunhai1991/redis,blackmady/redis,zhcy/redis,splitice/redis,PKRoma/redis,gaoxianglong/redis,wangyikai/redis,gongice/redis-3.0-annotated,ErikDubbelboer/redis,MSOpenTech/redis,thomasdarimont/redis,OmarQunsul/graph-redis,YongMan/redis,spinlock/redis,allengaller/redis,NBSW/redis,louisliangjun/redis,weizijun/redis,rrsean/redis-3.0-annotated,ituncle/redis,wujf/redis,MOON-CLJ/redis,z-fork/redis,dongqifan2/redis-3.0-annotated,devaos/redis,seppo0010/rlite-server,ncopa/redis,tanghaodong25/redis,Hailei/redis,MasahikoSawada/redis,GrimDerp/redis,pcarrier/redis,SummonY/redis,pmem/redis,devaos/redis,soloestoy/redis,StevenTsai/redis,xuzhezhaozhao/redis_reading,ipmobiletech/redis,timothyohare/3rdPartySrc-redis,mumingv/redis,whille/redis-3.0-annotated,NBSW/redis,zczhuohuo/redis,izhoujie/redis,modulexcite/redis,splitice/redis,gongice/redis-3.0-annotated,elkingtonmcb/redis,onlymellb/redis-3.0-annotated,fengshao0907/redis-3.0-annotated,qiyang0221/redis,mengyou0304/redis,charsyam/redis,atreeyang/redis,wprice/redis,vincent-vivian-liu/redis,unasm/redis-3.0-annotated,mverrilli/redis,zhcy/redis,allengaller/redis,yossigo/redis,mengyou0304/redis,z-fork/redis,SummonY/redis,ctripcorp/redis,ituncle/redis,j0hnma/hszredis,0x55/redis-3.0-annotated,zhiliaoniu/redis,msn217/redis-3.0-annotated,himoca/redis,PradheepShrinivasan/redis,LongXQ/redis,buobao/redis-3.0-annotated,twskipper/redis,a-pavlov/redis,jbochi/redis,healerkx/redis,takeshineshiro/redis,idning/redis,antirez/redis,soloestoy/redis,darksideofthemoo/redis-histogram,gaoxianglong/redis,linfangrong/redis,simplestbest/redis,twskipper/redis,programmecat/redis,drinkthere/redis-3.0-annotated,guker/redis,xlzhan/redis,narma/redis,yuzhangjob/redis-3.0-annotated-unstable,jbochi/redis,badboy/redis,taoguan/redis,mgk/redis,xuzhezhaozhao/redis_reading,YuraLukashik/redis,harrisonfeng/redis,gilala/bjredis,ketor/redis,HouKangkang/redis-3.0-annotated,mumingv/redis-3.0-annotated,roth1002/redis,zguangyu/redis,holstvoogd/redis,4396/redis,mcanthony/redis,0x55/redis-3.0-annotated,cloudrain21/redis,jacklee0810/redis-3.0-annotated,Markgorden/redis,ofirluzon/redis,HeartSaVioR/redis,soloestoy/redis,zhiliaoniu/redis,arijitvt/redis,zhoudayang/redis,wuyu201321060203/redis-3.0-annotated,jxwr/redis,charsyam/redis,riyan8250/redis,ouyangkongtong/redis,jxwr/redis,narma/redis,pcarrier/redis,190235047/redis,tanghaodong25/redis,csuhawk/redis,seandsky/redis,guker/redis,izhoujie/redis,mcanthony/redis,AALEKH/redis,magastzheng/redis-3.0-annotated,j0hnma/hszredis,cnbin/redis,sunheehnus/redis,vincent-vivian-liu/redis,ofirluzon/redis,ReadCode/redis-3.0-annotated,AplayER/redis,weizijun/redis,moonbingbing/redis-3.0-annotated,gilala/hbjredis,wenxueliu/redis_comment,supasate/redis,maodeyi/redis_lua,YongMan/redis,jacklee0810/redis-3.0-annotated,rrsean/redis-3.0-annotated,seppo0010/redis,MasahikoSawada/redis,haima-zju/redis-3.0-annotated,moonbingbing/redis-3.0-annotated,modulexcite/redis,dreamquster/redis,soveran/redis,adamweixuan/redis-3.0-annotated,jbochi/redis,tellapart/redis,magastzheng/redis-3.0-annotated,louisliangjun/redis,atreeyang/redis,GrimDerp/redis,july2993/redis,h0x91b/redis,tellapart/redis,ton31337/redis,HunanTV/redis,rouzier/redis,neomantra/redis,taoguan/redis,ipmobiletech/redis,MSOpenTech/redis,HeartSaVioR/redis,clamoriniere1A/redis,gaoxianglong/redis,twskipper/redis,sunheehnus/redis,xlzhan/redis,gilala/bjredis,jackyan/redis,shreesundara/redis,darksideofthemoo/redis-histogram,ErikDubbelboer/redis,WorkingOfTimtohyZhang/redis-3.0-annotated,fengshao0907/redis-3.0-annotated,ouyangkongtong/redis,gechong/redis-3.0-annotated,josiahcarlson/redis,itugs/redis,tjschuck/redis,brg-liuwei/redis,jasonkying/redis,francischan714/redis,narma/redis,mingyaaaa/redis,kensou97/redis,nuxeh/redis,a-pavlov/redis,thomasdarimont/redis,shshlzh/redis-3.0-annotated,ytjiang/redis,spinlock/redis,darksideofthemoo/redis-histogram,MOON-CLJ/redis,pcarrier/redis,ton31337/redis,abhiklodh/redis,tellapart/redis,HouKangkang/redis-3.0-annotated,riyan8250/redis,arijitvt/redis,yuzhangjob/redis-3.0-annotated-unstable,guker/redis,AALEKH/redis,xujunhai1991/redis,kmiku7/redis,seandsky/redis,vincent-vivian-liu/redis,itamarhaber/redis,xlzhan/redis,gilala/redis,wenxueliu/redis_comment,Hailei/redis,dayuoba/redis,mengzhejin/RedisStudy,alenslan/redis,iandyh/redis,ctripcorp/redis,4396/redis,nuxeh/redis,linfangrong/redis,hawkchch/redis,harrisonfeng/redis,honestme/redis,whille/redis-3.0-annotated,zy416548283/redis-3.0-annotated,saisai/redis,hornen/redis,yuzhangjob/redis-3.0-annotated-unstable,rrsean/redis-3.0-annotated,huyuezheng/redis,gongice/redis-3.0-annotated,supasate/redis,francischan714/redis,mengyou0304/redis,hornen/redis,spinlock/redis,pmem/redis,alenslan/redis,seppo0010/redis,YuanZhewei/redis,pkdevbox/redis,zczhuohuo/redis,simplestbest/redis,zy416548283/redis-3.0-annotated,YuraLukashik/redis,yuhc/redis-benchmark-enhanced,allengaller/redis,davidradunz/redis,splitice/redis,josiahcarlson/redis,hgl888/redis,xlzhan/redis,riyan8250/redis,mingyaaaa/redis,zhoudayang/redis,ncopa/redis,kensou97/redis,JoeWoo/redis,huyuezheng/redis,nnog/redis,tanghaodong25/redis,colstrom/redis,HunanTV/redis,netroby/redis,zguangyu/redis,huangz1990/redis-3.0-annotated,mingyaaaa/redis,MOON-CLJ/redis,takeshineshiro/redis,Sciumo/redis,CodeJuan/redis,YuanZhewei/redis,cnbin/redis,alenslan/redis,xuguruogu/redis,ketor/redis,190235047/redis,modulexcite/redis,citusdata/redis,Aliceljm1/redis,tellapart/redis,gilala/bjredis,qiyang0221/redis,Aliceljm1/redis,jacklee0810/redis-3.0-annotated,devaos/redis,janekmi/redis,josiahcarlson/redis,ton31337/redis,seppo0010/rlite-server,ReadCode/redis-3.0-annotated,kensou97/redis,msn217/redis-3.0-annotated,HunanTV/redis,programmecat/redis,healerkx/redis,NBSW/redis,shshlzh/redis-3.0-annotated,zhiliaoniu/redis,gilala/hbjredis,AplayER/redis,sunlianqiang/redis-3.0-annotated,mcanthony/redis,dayuoba/redis,mumingv/redis-3.0-annotated,rogerchina/redis,pkdevbox/redis,Wangyao14cyy/redis,seppo0010/rlite-server,MasahikoSawada/redis,kaushik94/redis,haima-zju/redis-3.0-annotated,gilala/bjredis,0x55/redis-3.0-annotated,seppo0010/rlite-server,dreamquster/redis,ttuna/msot-redis,JoeWoo/redis,OmarQunsul/graph-redis,cusspvz/redis,neomantra/redis,simplestbest/redis,mengzhejin/RedisStudy,wenxueliu/redis_comment,AALEKH/redis,yybirdcf/learn-redis,hedisdb/hedis,YuanZhewei/redis,nilyang/redis-tdd-annotation,gechong/redis-3.0-annotated,zhaobo1023/redis-3.0-annotated,pedigree/redis,soloestoy/redis,slfs007/mk-redis,wprice/redis,onlymellb/redis-3.0-annotated,Aaron1992/redis,jbochi/parallel_redis,msn217/redis-3.0-annotated,zguangyu/redis,brg-liuwei/redis,wbailey5/redis,nuxeh/redis,MSOpenTech/redis,pedigree/redis,weizijun/redis,mgk/redis,itamarhaber/redis,hornen/redis,cnbin/redis,dreamquster/redis,izhoujie/redis,oranagra/redis,haima-zju/redis-3.0-annotated,yuhc/redis-benchmark-enhanced,xuguruogu/redis,Sciumo/redis,hgl888/redis,oranagra/redis,itamarhaber/redis,jxwr/redis,nilyang/redis-tdd-annotation,csuhawk/redis,sunlianqiang/redis-3.0-annotated,gilala/redis,thomasdarimont/redis,atreeyang/redis,jackyan/redis,drinkthere/redis-3.0-annotated,neomantra/redis,maodeyi/redis_lua,Aliceljm1/redis-3.0-annotated,fankeke/redis-3.0-annotated,AALEKH/redis,j0hnma/szredis,dayuoba/redis,riyan8250/redis,Sciumo/redis,linfangrong/redis,mattsta/redis,gaoxianglong/redis,gilala/redis,cloudrain21/redis,charsyam/redis,universsky/redis,ttuna/msot-redis,ipmobiletech/redis,louisliangjun/redis,cusspvz/redis,qiyang0221/redis,RepmujNetsik/redis,JoeWoo/redis,yossigo/redis,linfangrong/redis,maodeyi/redis_lua,soloestoy/redis,hedisdb/hedis,cnbin/redis,CodeJuan/redis,timothyohare/3rdPartySrc-redis,wujf/redis,Aaron1992/redis,ctripcorp/redis,colstrom/redis,SummonY/redis,SummonY/redis,Sciumo/redis,ituncle/redis,netroby/redis,hedisdb/hedis,rogerchina/redis,july2993/redis,sunheehnus/redis,PradheepShrinivasan/redis,Wangyao14cyy/redis,dongqifan2/redis-3.0-annotated,spearhead-ea/redis,xuzhezhaozhao/redis_reading,itugs/redis,himoca/redis,Aliceljm1/redis-3.0-annotated,RepmujNetsik/redis,gilala/hredis,shining-yang/redis,cusspvz/redis,Soledad89/redis,ituncle/redis,PKRoma/redis,xujunhai1991/redis,honestme/redis,dayuoba/redis,izhoujie/redis,abhiklodh/redis,GrimDerp/redis,mverrilli/redis,citusdata/redis,ncopa/redis,fankeke/redis-3.0-annotated,adamweixuan/redis-3.0-annotated,holstvoogd/redis,kaushik94/redis,StevenTsai/redis,shining-yang/redis,AplayER/redis,JoeWoo/redis,Soledad89/redis,spearhead-ea/redis,seppo0010/redis,soveran/redis,himoca/redis,davidradunz/redis,aim-for-better/redis,PKRoma/redis,kmiku7/redis,GrimDerp/redis,ketor/redis,taoguan/redis,hawkchch/redis,0x55/redis-3.0-annotated,dongqifan2/redis-3.0-annotated,Aliceljm1/redis-3.0-annotated,ofirluzon/redis,modulexcite/redis,iandyh/redis,itamarhaber/redis,j0hnma/szredis,tanghaodong25/redis,seandsky/redis,saisai/redis,ofirluzon/redis,rogerchina/redis,whille/redis-3.0-annotated,clamoriniere1A/redis,mingyaaaa/redis,ttuna/msot-redis,antirez/redis,mverrilli/redis,wbailey5/redis,SyntaxStacks/redis,colstrom/redis,Soledad89/redis,StevenTsai/redis,valdsJohn/redis,shining-yang/redis,holstvoogd/redis,elkingtonmcb/redis,universsky/redis,ramonsnir/redis,LongXQ/redis,ErikDubbelboer/redis,wujf/redis,oranagra/redis,jackyan/redis,wprice/redis,mumingv/redis,nnog/redis,miaoyc1989/redis-3.0-annotated,dreamquster/redis,tzq668766/redis-3.0-annotated,fengshao0907/redis-3.0-annotated,unasm/redis-3.0-annotated,Markgorden/redis,iandyh/redis,duanx/redis,YuanZhewei/redis,zczhuohuo/redis,arijitvt/redis,cloudrain21/redis,a-pavlov/redis,z-fork/redis,magastzheng/redis-3.0-annotated,rouzier/redis,mengzhejin/RedisStudy,takeshineshiro/redis,rogerlz/redis,wangyikai/redis,xuguruogu/redis,ofirluzon/redis,tjschuck/redis,unasm/redis-3.0-annotated,adamweixuan/redis-3.0-annotated,AplayER/redis,ksarch-saas/redis,huangz1990/redis-3.0-annotated,Aliceljm1/redis,ytjiang/redis,zy416548283/redis-3.0-annotated,seppo0010/redis,wbailey5/redis,CodeJuan/redis,roth1002/redis,yuhc/redis-benchmark-enhanced,miaoyc1989/redis-3.0-annotated,davidradunz/redis,zhaobo1023/redis-3.0-annotated,mumingv/redis,WorkingOfTimtohyZhang/redis-3.0-annotated,louisliangjun/redis,timothyohare/3rdPartySrc-redis,honestme/redis,flashbuckets/redis,harrisonfeng/redis,RepmujNetsik/redis,PradheepShrinivasan/redis,gilala/hbjredis,buobao/redis-3.0-annotated,mengzhejin/RedisStudy,itugs/redis,blackmady/redis,shreesundara/redis,Markgorden/redis,ouyangkongtong/redis,wangyikai/redis,devaos/redis,twskipper/redis,roth1002/redis,soveran/redis,zhcy/redis,ksarch-saas/redis,ctripcorp/redis,ton31337/redis,abhiklodh/redis,jasonkying/redis,HunanTV/redis,takeshineshiro/redis,ouyangkongtong/redis,miaoyc1989/redis-3.0-annotated,spinlock/redis,CodeJuan/redis,idning/redis,colstrom/redis,ReadCode/redis-3.0-annotated,tzq668766/redis-3.0-annotated,shreesundara/redis,a-pavlov/redis,clamoriniere1A/redis,honestme/redis,splitice/redis,brg-liuwei/redis,blackmady/redis,oranagra/redis,jbochi/parallel_redis,huangz1990/redis-3.0-annotated,mumingv/redis,elkingtonmcb/redis,hawkchch/redis,huyuezheng/redis,kaushik94/redis,yuhc/redis-benchmark-enhanced,rogerlz/redis,duanx/redis,iandyh/redis,Aaron1992/redis,soveran/redis,roth1002/redis,drinkthere/redis-3.0-annotated,blackmady/redis,Aaron1992/redis,healerkx/redis,elkingtonmcb/redis,YongMan/redis,zhiliaoniu/redis,nnog/redis,netroby/redis,wangyikai/redis,gilala/hredis,guker/redis,allengaller/redis,jbochi/parallel_redis,aim-for-better/redis,thomasdarimont/redis,kmiku7/redis,qiyang0221/redis,Aliceljm1/redis,fengshao0907/redis,HeartSaVioR/redis,ttuna/msot-redis,saisai/redis,gechong/redis-3.0-annotated,zhcy/redis,idning/redis,pkdevbox/redis,taoguan/redis,csuhawk/redis,ipmobiletech/redis,pedigree/redis,yossigo/redis,miaoyc1989/redis-3.0-annotated,h0x91b/redis,programmecat/redis,rogerchina/redis,yybirdcf/learn-redis,mverrilli/redis,HeartSaVioR/redis,universsky/redis,WorkingOfTimtohyZhang/redis-3.0-annotated,Hailei/redis,StevenTsai/redis,fankeke/redis-3.0-annotated,ramonsnir/redis,tjschuck/redis,cusspvz/redis,z-fork/redis,duanx/redis,holstvoogd/redis,190235047/redis,simplestbest/redis,july2993/redis,kaushik94/redis,MSOpenTech/redis,MasahikoSawada/redis,sunheehnus/redis,aim-for-better/redis,nuxeh/redis,valdsJohn/redis,shshlzh/redis-3.0-annotated,zhoudayang/redis,pedigree/redis,SyntaxStacks/redis,h0x91b/redis,badboy/redis,vincent-vivian-liu/redis,j0hnma/szredis,fengshao0907/redis,kensou97/redis,xuguruogu/redis,4396/redis,antirez/redis,mattsta/redis,buobao/redis-3.0-annotated,wujf/redis,rouzier/redis,LongXQ/redis,jingjidejuren/redis,csuhawk/redis,darksideofthemoo/redis-histogram,hedisdb/hedis,j0hnma/hszredis,shining-yang/redis,Hailei/redis,july2993/redis,francischan714/redis,jackyan/redis,healerkx/redis,shreesundara/redis,duanx/redis,mengyou0304/redis,brg-liuwei/redis,rouzier/redis,gilala/redis,mcanthony/redis,SyntaxStacks/redis,RepmujNetsik/redis,atreeyang/redis,itugs/redis,hgl888/redis,kmiku7/redis,gilala/hredis,PKRoma/redis,YuraLukashik/redis,nilyang/redis-tdd-annotation,MSOpenTech/redis,citusdata/redis,YongMan/redis,YuraLukashik/redis,arijitvt/redis,Soledad89/redis,Wangyao14cyy/redis,badboy/redis,jingjidejuren/redis,nilyang/redis-tdd-annotation,ttuna/msot-redis,janekmi/redis,nnog/redis,SyntaxStacks/redis,saisai/redis,gilala/hbjredis,aim-for-better/redis,onlymellb/redis-3.0-annotated,pmem/redis,xuzhezhaozhao/redis_reading,janekmi/redis,tjschuck/redis,hgl888/redis,tzq668766/redis-3.0-annotated,idning/redis,fengshao0907/redis,shshlzh/redis-3.0-annotated,rogerlz/redis,GitHubMota/redis,josiahcarlson/redis,pmem/redis