[minor] fprintf to stderr instead of stdout in test
[minor] fprintf to stderr instead of stdout in test

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