fix a failure in roottest for merging labels histograms
fix a failure in roottest for merging labels histograms


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@47857 27541ba8-7e3a-0410-8455-c3a389f83636

agarciamontoro/root,esakellari/my_root_for_test,smarinac/root,simonpf/root,evgeny-boger/root,CristinaCristescu/root,satyarth934/root,bbockelm/root,cxx-hep/root-cern,CristinaCristescu/root,arch1tect0r/root,alexschlueter/cern-root,smarinac/root,veprbl/root,sawenzel/root,omazapa/root-old,omazapa/root,karies/root,jrtomps/root,sbinet/cxx-root,omazapa/root-old,beniz/root,0x0all/ROOT,cxx-hep/root-cern,jrtomps/root,esakellari/root,abhinavmoudgil95/root,thomaskeck/root,buuck/root,esakellari/my_root_for_test,0x0all/ROOT,lgiommi/root,0x0all/ROOT,jrtomps/root,perovic/root,omazapa/root-old,mattkretz/root,zzxuanyuan/root,abhinavmoudgil95/root,gganis/root,perovic/root,omazapa/root-old,zzxuanyuan/root-compressor-dummy,georgtroska/root,krafczyk/root,karies/root,abhinavmoudgil95/root,evgeny-boger/root,zzxuanyuan/root,omazapa/root-old,cxx-hep/root-cern,dfunke/root,perovic/root,mattkretz/root,thomaskeck/root,lgiommi/root,zzxuanyuan/root-compressor-dummy,cxx-hep/root-cern,mattkretz/root,lgiommi/root,sirinath/root,mattkretz/root,simonpf/root,esakellari/root,mkret2/root,perovic/root,georgtroska/root,thomaskeck/root,mhuwiler/rootauto,buuck/root,gbitzes/root,sbinet/cxx-root,perovic/root,zzxuanyuan/root,0x0all/ROOT,dfunke/root,davidlt/root,veprbl/root,agarciamontoro/root,karies/root,esakellari/root,buuck/root,satyarth934/root,nilqed/root,BerserkerTroll/root,thomaskeck/root,beniz/root,CristinaCristescu/root,sawenzel/root,krafczyk/root,esakellari/my_root_for_test,arch1tect0r/root,gbitzes/root,alexschlueter/cern-root,satyarth934/root,mkret2/root,Y--/root,abhinavmoudgil95/root,gganis/root,thomaskeck/root,mhuwiler/rootauto,buuck/root,mkret2/root,sawenzel/root,omazapa/root-old,olifre/root,perovic/root,veprbl/root,esakellari/my_root_for_test,olifre/root,Y--/root,satyarth934/root,gganis/root,pspe/root,BerserkerTroll/root,beniz/root,smarinac/root,dfunke/root,smarinac/root,davidlt/root,simonpf/root,satyarth934/root,alexschlueter/cern-root,mkret2/root,simonpf/root,esakellari/my_root_for_test,esakellari/my_root_for_test,agarciamontoro/root,buuck/root,bbockelm/root,gganis/root,beniz/root,dfunke/root,omazapa/root,bbockelm/root,vukasinmilosevic/root,simonpf/root,arch1tect0r/root,Y--/root,esakellari/root,zzxuanyuan/root-compressor-dummy,root-mirror/root,veprbl/root,mhuwiler/rootauto,smarinac/root,olifre/root,karies/root,davidlt/root,perovic/root,gbitzes/root,davidlt/root,veprbl/root,satyarth934/root,thomaskeck/root,veprbl/root,georgtroska/root,abhinavmoudgil95/root,jrtomps/root,simonpf/root,abhinavmoudgil95/root,root-mirror/root,BerserkerTroll/root,jrtomps/root,krafczyk/root,veprbl/root,gbitzes/root,davidlt/root,0x0all/ROOT,davidlt/root,bbockelm/root,sawenzel/root,mhuwiler/rootauto,abhinavmoudgil95/root,bbockelm/root,Y--/root,CristinaCristescu/root,karies/root,perovic/root,Duraznos/root,veprbl/root,sbinet/cxx-root,sawenzel/root,esakellari/root,sawenzel/root,vukasinmilosevic/root,cxx-hep/root-cern,vukasinmilosevic/root,karies/root,alexschlueter/cern-root,sbinet/cxx-root,gbitzes/root,mhuwiler/rootauto,georgtroska/root,georgtroska/root,sbinet/cxx-root,georgtroska/root,esakellari/my_root_for_test,mattkretz/root,nilqed/root,Duraznos/root,pspe/root,thomaskeck/root,simonpf/root,esakellari/my_root_for_test,simonpf/root,zzxuanyuan/root-compressor-dummy,buuck/root,lgiommi/root,sawenzel/root,BerserkerTroll/root,arch1tect0r/root,agarciamontoro/root,pspe/root,sirinath/root,BerserkerTroll/root,sirinath/root,sbinet/cxx-root,sirinath/root,sawenzel/root,vukasinmilosevic/root,BerserkerTroll/root,arch1tect0r/root,buuck/root,krafczyk/root,olifre/root,sirinath/root,simonpf/root,buuck/root,olifre/root,root-mirror/root,nilqed/root,zzxuanyuan/root-compressor-dummy,evgeny-boger/root,sirinath/root,dfunke/root,evgeny-boger/root,smarinac/root,perovic/root,evgeny-boger/root,dfunke/root,alexschlueter/cern-root,zzxuanyuan/root,georgtroska/root,zzxuanyuan/root,mkret2/root,CristinaCristescu/root,BerserkerTroll/root,sawenzel/root,zzxuanyuan/root-compressor-dummy,pspe/root,omazapa/root,Duraznos/root,mattkretz/root,Duraznos/root,gbitzes/root,root-mirror/root,mkret2/root,Y--/root,sbinet/cxx-root,esakellari/root,mhuwiler/rootauto,satyarth934/root,vukasinmilosevic/root,Duraznos/root,sirinath/root,agarciamontoro/root,veprbl/root,zzxuanyuan/root,0x0all/ROOT,omazapa/root-old,sirinath/root,georgtroska/root,beniz/root,esakellari/my_root_for_test,krafczyk/root,evgeny-boger/root,jrtomps/root,mattkretz/root,buuck/root,zzxuanyuan/root-compressor-dummy,krafczyk/root,cxx-hep/root-cern,root-mirror/root,zzxuanyuan/root,abhinavmoudgil95/root,mattkretz/root,jrtomps/root,agarciamontoro/root,krafczyk/root,bbockelm/root,smarinac/root,abhinavmoudgil95/root,gbitzes/root,sirinath/root,zzxuanyuan/root,olifre/root,mkret2/root,vukasinmilosevic/root,satyarth934/root,karies/root,evgeny-boger/root,BerserkerTroll/root,gganis/root,lgiommi/root,cxx-hep/root-cern,krafczyk/root,pspe/root,buuck/root,smarinac/root,beniz/root,omazapa/root-old,mhuwiler/rootauto,Duraznos/root,beniz/root,sawenzel/root,sirinath/root,mhuwiler/rootauto,gganis/root,0x0all/ROOT,dfunke/root,gganis/root,bbockelm/root,buuck/root,mhuwiler/rootauto,arch1tect0r/root,georgtroska/root,Y--/root,esakellari/root,abhinavmoudgil95/root,zzxuanyuan/root,olifre/root,lgiommi/root,zzxuanyuan/root-compressor-dummy,dfunke/root,BerserkerTroll/root,nilqed/root,zzxuanyuan/root-compressor-dummy,gganis/root,agarciamontoro/root,arch1tect0r/root,Y--/root,CristinaCristescu/root,Duraznos/root,mattkretz/root,bbockelm/root,0x0all/ROOT,omazapa/root-old,vukasinmilosevic/root,omazapa/root-old,mkret2/root,root-mirror/root,Duraznos/root,CristinaCristescu/root,root-mirror/root,zzxuanyuan/root-compressor-dummy,mkret2/root,pspe/root,alexschlueter/cern-root,dfunke/root,nilqed/root,evgeny-boger/root,omazapa/root,davidlt/root,Duraznos/root,vukasinmilosevic/root,krafczyk/root,alexschlueter/cern-root,nilqed/root,bbockelm/root,omazapa/root,davidlt/root,abhinavmoudgil95/root,Y--/root,gganis/root,thomaskeck/root,mattkretz/root,arch1tect0r/root,CristinaCristescu/root,agarciamontoro/root,pspe/root,beniz/root,nilqed/root,root-mirror/root,evgeny-boger/root,CristinaCristescu/root,cxx-hep/root-cern,sawenzel/root,beniz/root,karies/root,krafczyk/root,jrtomps/root,esakellari/root,CristinaCristescu/root,mattkretz/root,BerserkerTroll/root,lgiommi/root,lgiommi/root,sirinath/root,esakellari/root,CristinaCristescu/root,Duraznos/root,mkret2/root,smarinac/root,olifre/root,sbinet/cxx-root,bbockelm/root,jrtomps/root,beniz/root,zzxuanyuan/root,georgtroska/root,sbinet/cxx-root,agarciamontoro/root,thomaskeck/root,mhuwiler/rootauto,BerserkerTroll/root,arch1tect0r/root,satyarth934/root,sbinet/cxx-root,gbitzes/root,nilqed/root,davidlt/root,omazapa/root,mkret2/root,bbockelm/root,vukasinmilosevic/root,jrtomps/root,nilqed/root,mhuwiler/rootauto,karies/root,perovic/root,thomaskeck/root,lgiommi/root,zzxuanyuan/root,olifre/root,0x0all/ROOT,pspe/root,gbitzes/root,olifre/root,sbinet/cxx-root,evgeny-boger/root,davidlt/root,root-mirror/root,davidlt/root,dfunke/root,beniz/root,satyarth934/root,Y--/root,omazapa/root,esakellari/my_root_for_test,Y--/root,smarinac/root,omazapa/root,arch1tect0r/root,dfunke/root,karies/root,Duraznos/root,vukasinmilosevic/root,Y--/root,gganis/root,simonpf/root,evgeny-boger/root,esakellari/root,zzxuanyuan/root-compressor-dummy,perovic/root,omazapa/root,krafczyk/root,nilqed/root,veprbl/root,georgtroska/root,gganis/root,gbitzes/root,gbitzes/root,vukasinmilosevic/root,veprbl/root,root-mirror/root,omazapa/root-old,zzxuanyuan/root,pspe/root,olifre/root,agarciamontoro/root,omazapa/root,omazapa/root,lgiommi/root,pspe/root,pspe/root,agarciamontoro/root,arch1tect0r/root,karies/root,lgiommi/root,root-mirror/root,esakellari/root,satyarth934/root,jrtomps/root,nilqed/root,simonpf/root