Add quicklist info to DEBUG OBJECT
Add quicklist info to DEBUG OBJECT

Added field 'ql_nodes' and 'ql_avg_per_node'.

ql_nodes is the number of quicklist nodes in the quicklist.
ql_avg_node is the average fill level in each quicklist node. (LLEN / QL_NODES)

Sample output:
127.0.0.1:6379> DEBUG object b
Value at:0x7fa42bf2fed0 refcount:1 encoding:quicklist serializedlength:18489 lru:8983768 lru_seconds_idle:3 ql_nodes:430 ql_avg_per_node:511.73
127.0.0.1:6379> llen b
(integer) 220044

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