Use version defined in Makefile in rocksdb_build_git_sha
Use version defined in Makefile in rocksdb_build_git_sha

Summary: Now rocksdb_build_git_sha is determined from "git sha". It is hard if the release is not from the repository directly but from a source code copy. Change to use the versions given in Makefile.

Test Plan: Run "make util/build_version.cc"

Reviewers: kradhakrishnan, rven, meyering, igor

Reviewed By: igor

Subscribers: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D38451

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