[Log dumper broken when merge operator is in log]
[Log dumper broken when merge operator is in log]

Summary: $title

Test Plan:
on my dev box

Revert Plan: OK

Task ID: #

Reviewers: emayanke, dhruba, haobo

Reviewed By: haobo

CC: leveldb

Differential Revision: https://reviews.facebook.net/D14451

biddyweb/rocksdb,biddyweb/rocksdb,hobinyoon/rocksdb,tschottdorf/rocksdb,ylong/rocksdb,wenduo/rocksdb,hobinyoon/rocksdb,vashstorm/rocksdb,alihalabyah/rocksdb,sorphi/rocksdb,anagav/rocksdb,geraldoandradee/rocksdb,hobinyoon/rocksdb,luckywhu/rocksdb,wskplho/rocksdb,wlqGit/rocksdb,sorphi/rocksdb,tsheasha/rocksdb,tschottdorf/rocksdb,JohnPJenkins/rocksdb,ylong/rocksdb,tschottdorf/rocksdb,geraldoandradee/rocksdb,siddhartharay007/rocksdb,RyanTech/rocksdb,dkorolev/rocksdb,msb-at-yahoo/rocksdb,Vaisman/rocksdb,lgscofield/rocksdb,dkorolev/rocksdb,vashstorm/rocksdb,rDSN-Projects/rocksdb.replicated,hobinyoon/rocksdb,skunkwerks/rocksdb,ylong/rocksdb,anagav/rocksdb,caijieming-baidu/rocksdb,mbarbon/rocksdb,ylong/rocksdb,tizzybec/rocksdb,temicai/rocksdb,skunkwerks/rocksdb,makelivedotnet/rocksdb,makelivedotnet/rocksdb,mbarbon/rocksdb,biddyweb/rocksdb,JackLian/rocksdb,biddyweb/rocksdb,alihalabyah/rocksdb,NickCis/rocksdb,JoeWoo/rocksdb,geraldoandradee/rocksdb,geraldoandradee/rocksdb,tizzybec/rocksdb,JoeWoo/rocksdb,luckywhu/rocksdb,RyanTech/rocksdb,msb-at-yahoo/rocksdb,flabby/rocksdb,OverlordQ/rocksdb,amyvmiwei/rocksdb,zhangpng/rocksdb,tschottdorf/rocksdb,virtdb/rocksdb,wlqGit/rocksdb,luckywhu/rocksdb,RyanTech/rocksdb,biddyweb/rocksdb,fengshao0907/rocksdb,JackLian/rocksdb,rDSN-Projects/rocksdb.replicated,IMCG/RcoksDB,wenduo/rocksdb,lgscofield/rocksdb,wlqGit/rocksdb,luckywhu/rocksdb,JackLian/rocksdb,sorphi/rocksdb,tsheasha/rocksdb,IMCG/RcoksDB,Andymic/rocksdb,Andymic/rocksdb,tizzybec/rocksdb,rDSN-Projects/rocksdb.replicated,kaschaeffer/rocksdb,amyvmiwei/rocksdb,ryneli/rocksdb,siddhartharay007/rocksdb,lgscofield/rocksdb,wlqGit/rocksdb,facebook/rocksdb,geraldoandradee/rocksdb,RyanTech/rocksdb,msb-at-yahoo/rocksdb,bbiao/rocksdb,skunkwerks/rocksdb,fengshao0907/rocksdb,tizzybec/rocksdb,JackLian/rocksdb,mbarbon/rocksdb,facebook/rocksdb,JohnPJenkins/rocksdb,caijieming-baidu/rocksdb,dkorolev/rocksdb,siddhartharay007/rocksdb,facebook/rocksdb,fengshao0907/rocksdb,norton/rocksdb,jalexanderqed/rocksdb,tsheasha/rocksdb,caijieming-baidu/rocksdb,siddhartharay007/rocksdb,wat-ze-hex/rocksdb,wskplho/rocksdb,bbiao/rocksdb,OverlordQ/rocksdb,IMCG/RcoksDB,dkorolev/rocksdb,amyvmiwei/rocksdb,fengshao0907/rocksdb,ryneli/rocksdb,ryneli/rocksdb,kaschaeffer/rocksdb,wenduo/rocksdb,NickCis/rocksdb,tizzybec/rocksdb,Applied-Duality/rocksdb,alihalabyah/rocksdb,facebook/rocksdb,temicai/rocksdb,facebook/rocksdb,zhangpng/rocksdb,SunguckLee/RocksDB,sorphi/rocksdb,ryneli/rocksdb,hobinyoon/rocksdb,zhangpng/rocksdb,wskplho/rocksdb,fengshao0907/rocksdb,ryneli/rocksdb,RyanTech/rocksdb,luckywhu/rocksdb,dkorolev/rocksdb,Andymic/rocksdb,kaschaeffer/rocksdb,temicai/rocksdb,bbiao/rocksdb,jalexanderqed/rocksdb,vashstorm/rocksdb,temicai/rocksdb,NickCis/rocksdb,rDSN-Projects/rocksdb.replicated,temicai/rocksdb,anagav/rocksdb,virtdb/rocksdb,wenduo/rocksdb,vmx/rocksdb,makelivedotnet/rocksdb,wat-ze-hex/rocksdb,JohnPJenkins/rocksdb,OverlordQ/rocksdb,amyvmiwei/rocksdb,amyvmiwei/rocksdb,lgscofield/rocksdb,mbarbon/rocksdb,biddyweb/rocksdb,wat-ze-hex/rocksdb,OverlordQ/rocksdb,ryneli/rocksdb,ylong/rocksdb,caijieming-baidu/rocksdb,vmx/rocksdb,tsheasha/rocksdb,JoeWoo/rocksdb,norton/rocksdb,Andymic/rocksdb,caijieming-baidu/rocksdb,tschottdorf/rocksdb,jalexanderqed/rocksdb,RyanTech/rocksdb,OverlordQ/rocksdb,geraldoandradee/rocksdb,jalexanderqed/rocksdb,geraldoandradee/rocksdb,luckywhu/rocksdb,SunguckLee/RocksDB,sorphi/rocksdb,msb-at-yahoo/rocksdb,siddhartharay007/rocksdb,makelivedotnet/rocksdb,IMCG/RcoksDB,wat-ze-hex/rocksdb,Applied-Duality/rocksdb,Vaisman/rocksdb,vashstorm/rocksdb,JoeWoo/rocksdb,facebook/rocksdb,skunkwerks/rocksdb,wat-ze-hex/rocksdb,Applied-Duality/rocksdb,IMCG/RcoksDB,norton/rocksdb,jalexanderqed/rocksdb,ryneli/rocksdb,RyanTech/rocksdb,wat-ze-hex/rocksdb,fengshao0907/rocksdb,vmx/rocksdb,ylong/rocksdb,zhangpng/rocksdb,norton/rocksdb,flabby/rocksdb,makelivedotnet/rocksdb,facebook/rocksdb,NickCis/rocksdb,skunkwerks/rocksdb,wenduo/rocksdb,amyvmiwei/rocksdb,caijieming-baidu/rocksdb,SunguckLee/RocksDB,jalexanderqed/rocksdb,Vaisman/rocksdb,lgscofield/rocksdb,skunkwerks/rocksdb,Andymic/rocksdb,zhangpng/rocksdb,wskplho/rocksdb,Applied-Duality/rocksdb,dkorolev/rocksdb,flabby/rocksdb,JohnPJenkins/rocksdb,tsheasha/rocksdb,amyvmiwei/rocksdb,JohnPJenkins/rocksdb,alihalabyah/rocksdb,anagav/rocksdb,tschottdorf/rocksdb,temicai/rocksdb,wenduo/rocksdb,jalexanderqed/rocksdb,flabby/rocksdb,bbiao/rocksdb,Vaisman/rocksdb,JohnPJenkins/rocksdb,wat-ze-hex/rocksdb,makelivedotnet/rocksdb,JackLian/rocksdb,sorphi/rocksdb,wskplho/rocksdb,makelivedotnet/rocksdb,virtdb/rocksdb,Vaisman/rocksdb,rDSN-Projects/rocksdb.replicated,vashstorm/rocksdb,SunguckLee/RocksDB,IMCG/RcoksDB,flabby/rocksdb,Applied-Duality/rocksdb,anagav/rocksdb,wenduo/rocksdb,msb-at-yahoo/rocksdb,JoeWoo/rocksdb,anagav/rocksdb,Andymic/rocksdb,siddhartharay007/rocksdb,SunguckLee/RocksDB,JackLian/rocksdb,norton/rocksdb,sorphi/rocksdb,Vaisman/rocksdb,wskplho/rocksdb,hobinyoon/rocksdb,virtdb/rocksdb,lgscofield/rocksdb,NickCis/rocksdb,tizzybec/rocksdb,norton/rocksdb,hobinyoon/rocksdb,IMCG/RcoksDB,bbiao/rocksdb,kaschaeffer/rocksdb,mbarbon/rocksdb,SunguckLee/RocksDB,SunguckLee/RocksDB,wlqGit/rocksdb,Vaisman/rocksdb,vmx/rocksdb,fengshao0907/rocksdb,alihalabyah/rocksdb,flabby/rocksdb,vashstorm/rocksdb,biddyweb/rocksdb,tizzybec/rocksdb,norton/rocksdb,anagav/rocksdb,facebook/rocksdb,Andymic/rocksdb,JoeWoo/rocksdb,flabby/rocksdb,JoeWoo/rocksdb,tsheasha/rocksdb,kaschaeffer/rocksdb,rDSN-Projects/rocksdb.replicated,dkorolev/rocksdb,SunguckLee/RocksDB,zhangpng/rocksdb,bbiao/rocksdb,Applied-Duality/rocksdb,bbiao/rocksdb,virtdb/rocksdb,tsheasha/rocksdb,wlqGit/rocksdb,norton/rocksdb,msb-at-yahoo/rocksdb,vmx/rocksdb,kaschaeffer/rocksdb,luckywhu/rocksdb,virtdb/rocksdb,bbiao/rocksdb,JackLian/rocksdb,alihalabyah/rocksdb,ylong/rocksdb,mbarbon/rocksdb,vmx/rocksdb,rDSN-Projects/rocksdb.replicated,lgscofield/rocksdb,vashstorm/rocksdb,wenduo/rocksdb,temicai/rocksdb,mbarbon/rocksdb,Applied-Duality/rocksdb,wlqGit/rocksdb,vmx/rocksdb,OverlordQ/rocksdb,alihalabyah/rocksdb,vmx/rocksdb,hobinyoon/rocksdb,OverlordQ/rocksdb,NickCis/rocksdb,tsheasha/rocksdb,JohnPJenkins/rocksdb,skunkwerks/rocksdb,wskplho/rocksdb,NickCis/rocksdb,virtdb/rocksdb,zhangpng/rocksdb,kaschaeffer/rocksdb,wat-ze-hex/rocksdb,caijieming-baidu/rocksdb,siddhartharay007/rocksdb,Andymic/rocksdb