From Axel: avoid DNS call in HostName() by using first the env var COMPUTERNAME.
From Axel:
avoid DNS call in HostName() by using first the env var COMPUTERNAME.


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@13437 27541ba8-7e3a-0410-8455-c3a389f83636

bbockelm/root,pspe/root,cxx-hep/root-cern,vukasinmilosevic/root,cxx-hep/root-cern,olifre/root,dfunke/root,davidlt/root,evgeny-boger/root,simonpf/root,CristinaCristescu/root,Duraznos/root,smarinac/root,BerserkerTroll/root,alexschlueter/cern-root,Duraznos/root,vukasinmilosevic/root,omazapa/root,bbockelm/root,krafczyk/root,agarciamontoro/root,abhinavmoudgil95/root,omazapa/root-old,bbockelm/root,buuck/root,sbinet/cxx-root,davidlt/root,beniz/root,evgeny-boger/root,zzxuanyuan/root-compressor-dummy,evgeny-boger/root,agarciamontoro/root,krafczyk/root,smarinac/root,jrtomps/root,jrtomps/root,tc3t/qoot,tc3t/qoot,Duraznos/root,dfunke/root,gganis/root,evgeny-boger/root,Dr15Jones/root,strykejern/TTreeReader,CristinaCristescu/root,gganis/root,georgtroska/root,esakellari/root,lgiommi/root,georgtroska/root,perovic/root,smarinac/root,arch1tect0r/root,omazapa/root-old,mattkretz/root,cxx-hep/root-cern,davidlt/root,nilqed/root,root-mirror/root,agarciamontoro/root,CristinaCristescu/root,veprbl/root,thomaskeck/root,smarinac/root,satyarth934/root,Dr15Jones/root,zzxuanyuan/root,mattkretz/root,pspe/root,gganis/root,root-mirror/root,vukasinmilosevic/root,satyarth934/root,davidlt/root,lgiommi/root,vukasinmilosevic/root,thomaskeck/root,sbinet/cxx-root,perovic/root,Duraznos/root,thomaskeck/root,simonpf/root,BerserkerTroll/root,BerserkerTroll/root,Duraznos/root,gbitzes/root,krafczyk/root,olifre/root,omazapa/root-old,Y--/root,sbinet/cxx-root,mkret2/root,zzxuanyuan/root,nilqed/root,sbinet/cxx-root,BerserkerTroll/root,perovic/root,buuck/root,esakellari/my_root_for_test,tc3t/qoot,ffurano/root5,gganis/root,veprbl/root,Y--/root,Y--/root,dfunke/root,nilqed/root,krafczyk/root,jrtomps/root,pspe/root,kirbyherm/root-r-tools,mattkretz/root,lgiommi/root,beniz/root,davidlt/root,sawenzel/root,karies/root,abhinavmoudgil95/root,bbockelm/root,olifre/root,kirbyherm/root-r-tools,lgiommi/root,pspe/root,zzxuanyuan/root-compressor-dummy,arch1tect0r/root,Y--/root,gbitzes/root,davidlt/root,strykejern/TTreeReader,perovic/root,cxx-hep/root-cern,dfunke/root,sawenzel/root,CristinaCristescu/root,evgeny-boger/root,zzxuanyuan/root,Y--/root,omazapa/root,georgtroska/root,esakellari/root,mkret2/root,nilqed/root,0x0all/ROOT,dfunke/root,0x0all/ROOT,zzxuanyuan/root-compressor-dummy,esakellari/my_root_for_test,BerserkerTroll/root,veprbl/root,tc3t/qoot,veprbl/root,Y--/root,karies/root,pspe/root,cxx-hep/root-cern,mattkretz/root,jrtomps/root,omazapa/root,alexschlueter/cern-root,satyarth934/root,bbockelm/root,omazapa/root-old,esakellari/root,Dr15Jones/root,BerserkerTroll/root,dfunke/root,olifre/root,satyarth934/root,BerserkerTroll/root,beniz/root,esakellari/root,kirbyherm/root-r-tools,jrtomps/root,satyarth934/root,bbockelm/root,smarinac/root,perovic/root,mhuwiler/rootauto,arch1tect0r/root,zzxuanyuan/root-compressor-dummy,davidlt/root,0x0all/ROOT,sirinath/root,nilqed/root,georgtroska/root,gganis/root,mhuwiler/rootauto,veprbl/root,gganis/root,sirinath/root,gbitzes/root,krafczyk/root,buuck/root,jrtomps/root,pspe/root,omazapa/root-old,0x0all/ROOT,CristinaCristescu/root,mattkretz/root,CristinaCristescu/root,dfunke/root,davidlt/root,georgtroska/root,sawenzel/root,esakellari/my_root_for_test,arch1tect0r/root,arch1tect0r/root,zzxuanyuan/root-compressor-dummy,arch1tect0r/root,beniz/root,mhuwiler/rootauto,root-mirror/root,abhinavmoudgil95/root,sirinath/root,sirinath/root,mkret2/root,0x0all/ROOT,gganis/root,gbitzes/root,krafczyk/root,perovic/root,esakellari/my_root_for_test,root-mirror/root,mattkretz/root,davidlt/root,smarinac/root,zzxuanyuan/root,perovic/root,esakellari/root,nilqed/root,omazapa/root,evgeny-boger/root,agarciamontoro/root,evgeny-boger/root,sbinet/cxx-root,evgeny-boger/root,zzxuanyuan/root,zzxuanyuan/root,sbinet/cxx-root,karies/root,root-mirror/root,sawenzel/root,kirbyherm/root-r-tools,buuck/root,omazapa/root,omazapa/root,vukasinmilosevic/root,bbockelm/root,veprbl/root,esakellari/my_root_for_test,veprbl/root,arch1tect0r/root,mkret2/root,BerserkerTroll/root,nilqed/root,Duraznos/root,ffurano/root5,zzxuanyuan/root-compressor-dummy,sbinet/cxx-root,krafczyk/root,Duraznos/root,thomaskeck/root,omazapa/root-old,simonpf/root,arch1tect0r/root,abhinavmoudgil95/root,beniz/root,mattkretz/root,perovic/root,esakellari/my_root_for_test,bbockelm/root,Y--/root,sbinet/cxx-root,zzxuanyuan/root-compressor-dummy,ffurano/root5,olifre/root,omazapa/root-old,arch1tect0r/root,zzxuanyuan/root,Y--/root,evgeny-boger/root,mattkretz/root,agarciamontoro/root,mhuwiler/rootauto,Duraznos/root,tc3t/qoot,abhinavmoudgil95/root,Y--/root,lgiommi/root,vukasinmilosevic/root,arch1tect0r/root,zzxuanyuan/root-compressor-dummy,mhuwiler/rootauto,CristinaCristescu/root,jrtomps/root,nilqed/root,sbinet/cxx-root,alexschlueter/cern-root,alexschlueter/cern-root,veprbl/root,root-mirror/root,karies/root,abhinavmoudgil95/root,vukasinmilosevic/root,esakellari/root,vukasinmilosevic/root,abhinavmoudgil95/root,esakellari/root,buuck/root,karies/root,abhinavmoudgil95/root,root-mirror/root,sirinath/root,olifre/root,zzxuanyuan/root,ffurano/root5,agarciamontoro/root,jrtomps/root,mhuwiler/rootauto,georgtroska/root,satyarth934/root,esakellari/my_root_for_test,dfunke/root,Y--/root,strykejern/TTreeReader,sirinath/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root,smarinac/root,agarciamontoro/root,esakellari/my_root_for_test,sawenzel/root,mkret2/root,mhuwiler/rootauto,CristinaCristescu/root,strykejern/TTreeReader,bbockelm/root,tc3t/qoot,karies/root,sirinath/root,ffurano/root5,agarciamontoro/root,0x0all/ROOT,satyarth934/root,gganis/root,Dr15Jones/root,simonpf/root,sawenzel/root,davidlt/root,evgeny-boger/root,esakellari/root,Dr15Jones/root,gganis/root,0x0all/ROOT,beniz/root,jrtomps/root,abhinavmoudgil95/root,gganis/root,mkret2/root,sbinet/cxx-root,abhinavmoudgil95/root,sirinath/root,veprbl/root,esakellari/my_root_for_test,dfunke/root,karies/root,mhuwiler/rootauto,mhuwiler/rootauto,omazapa/root-old,veprbl/root,root-mirror/root,zzxuanyuan/root,tc3t/qoot,strykejern/TTreeReader,georgtroska/root,omazapa/root,dfunke/root,Duraznos/root,Dr15Jones/root,krafczyk/root,alexschlueter/cern-root,Duraznos/root,thomaskeck/root,gbitzes/root,esakellari/my_root_for_test,simonpf/root,sawenzel/root,gganis/root,strykejern/TTreeReader,smarinac/root,omazapa/root-old,lgiommi/root,esakellari/root,karies/root,beniz/root,simonpf/root,simonpf/root,buuck/root,pspe/root,agarciamontoro/root,gbitzes/root,satyarth934/root,lgiommi/root,nilqed/root,buuck/root,vukasinmilosevic/root,zzxuanyuan/root,buuck/root,lgiommi/root,gbitzes/root,krafczyk/root,esakellari/root,georgtroska/root,pspe/root,alexschlueter/cern-root,zzxuanyuan/root-compressor-dummy,gbitzes/root,thomaskeck/root,karies/root,georgtroska/root,olifre/root,tc3t/qoot,lgiommi/root,zzxuanyuan/root,mkret2/root,mhuwiler/rootauto,sawenzel/root,karies/root,sbinet/cxx-root,beniz/root,jrtomps/root,beniz/root,mhuwiler/rootauto,perovic/root,cxx-hep/root-cern,satyarth934/root,Y--/root,root-mirror/root,BerserkerTroll/root,vukasinmilosevic/root,kirbyherm/root-r-tools,bbockelm/root,lgiommi/root,cxx-hep/root-cern,root-mirror/root,simonpf/root,tc3t/qoot,simonpf/root,omazapa/root,0x0all/ROOT,sirinath/root,buuck/root,omazapa/root-old,thomaskeck/root,pspe/root,mkret2/root,perovic/root,mkret2/root,gbitzes/root,Dr15Jones/root,abhinavmoudgil95/root,alexschlueter/cern-root,thomaskeck/root,sirinath/root,jrtomps/root,agarciamontoro/root,CristinaCristescu/root,smarinac/root,Duraznos/root,simonpf/root,dfunke/root,pspe/root,georgtroska/root,mattkretz/root,simonpf/root,olifre/root,strykejern/TTreeReader,mattkretz/root,perovic/root,agarciamontoro/root,olifre/root,0x0all/ROOT,gbitzes/root,bbockelm/root,kirbyherm/root-r-tools,ffurano/root5,CristinaCristescu/root,buuck/root,sirinath/root,CristinaCristescu/root,zzxuanyuan/root-compressor-dummy,nilqed/root,sawenzel/root,mkret2/root,lgiommi/root,BerserkerTroll/root,pspe/root,root-mirror/root,satyarth934/root,krafczyk/root,evgeny-boger/root,karies/root,sawenzel/root,tc3t/qoot,omazapa/root,cxx-hep/root-cern,arch1tect0r/root,ffurano/root5,gbitzes/root,sawenzel/root,satyarth934/root,davidlt/root,olifre/root,buuck/root,beniz/root,omazapa/root,thomaskeck/root,smarinac/root,BerserkerTroll/root,esakellari/root,krafczyk/root,vukasinmilosevic/root,kirbyherm/root-r-tools,omazapa/root,thomaskeck/root,mattkretz/root,mkret2/root,beniz/root,veprbl/root,georgtroska/root,nilqed/root,olifre/root,omazapa/root-old