fix the error message in debug mode
fix the error message in debug mode

Summary:

my fix patch introduced a new error in debug mode.

Test Plan:

`make` and `make release`

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