Fixed clang warnings in cGZipFile.
Fixed clang warnings in cGZipFile.

electromatter/cuberite,Schwertspize/cuberite,Frownigami1/cuberite,johnsoch/cuberite,Schwertspize/cuberite,Altenius/cuberite,guijun/MCServer,linnemannr/MCServer,birkett/cuberite,mc-server/MCServer,Tri125/MCServer,birkett/MCServer,johnsoch/cuberite,jammet/MCServer,Haxi52/cuberite,guijun/MCServer,HelenaKitty/EbooMC,SamOatesPlugins/cuberite,mjssw/cuberite,kevinr/cuberite,jammet/MCServer,Howaner/MCServer,Fighter19/cuberite,electromatter/cuberite,nichwall/cuberite,linnemannr/MCServer,zackp30/cuberite,johnsoch/cuberite,nevercast/cuberite,Haxi52/cuberite,Frownigami1/cuberite,guijun/MCServer,zackp30/cuberite,nichwall/cuberite,kevinr/cuberite,jammet/MCServer,tonibm19/cuberite,mmdk95/cuberite,kevinr/cuberite,linnemannr/MCServer,tonibm19/cuberite,mc-server/MCServer,Frownigami1/cuberite,Howaner/MCServer,Howaner/MCServer,nichwall/cuberite,Tri125/MCServer,nounoursheureux/MCServer,Haxi52/cuberite,Fighter19/cuberite,QUSpilPrgm/cuberite,jammet/MCServer,Altenius/cuberite,SamOatesPlugins/cuberite,bendl/cuberite,bendl/cuberite,QUSpilPrgm/cuberite,QUSpilPrgm/cuberite,nicodinh/cuberite,mc-server/MCServer,thetaeo/cuberite,tonibm19/cuberite,nicodinh/cuberite,thetaeo/cuberite,Frownigami1/cuberite,QUSpilPrgm/cuberite,Howaner/MCServer,Altenius/cuberite,tonibm19/cuberite,kevinr/cuberite,Tri125/MCServer,ionux/MCServer,linnemannr/MCServer,HelenaKitty/EbooMC,ionux/MCServer,nevercast/cuberite,zackp30/cuberite,nevercast/cuberite,HelenaKitty/EbooMC,nicodinh/cuberite,QUSpilPrgm/cuberite,SamOatesPlugins/cuberite,HelenaKitty/EbooMC,electromatter/cuberite,mc-server/MCServer,guijun/MCServer,ionux/MCServer,bendl/cuberite,nounoursheureux/MCServer,MuhammadWang/MCServer,electromatter/cuberite,linnemannr/MCServer,bendl/cuberite,kevinr/cuberite,zackp30/cuberite,MuhammadWang/MCServer,nicodinh/cuberite,mmdk95/cuberite,marvinkopf/cuberite,mjssw/cuberite,guijun/MCServer,mjssw/cuberite,Schwertspize/cuberite,HelenaKitty/EbooMC,birkett/MCServer,Fighter19/cuberite,mjssw/cuberite,mc-server/MCServer,nounoursheureux/MCServer,MuhammadWang/MCServer,SamOatesPlugins/cuberite,thetaeo/cuberite,thetaeo/cuberite,birkett/cuberite,Fighter19/cuberite,mjssw/cuberite,ionux/MCServer,jammet/MCServer,ionux/MCServer,Fighter19/cuberite,ionux/MCServer,electromatter/cuberite,birkett/MCServer,birkett/cuberite,nounoursheureux/MCServer,kevinr/cuberite,Frownigami1/cuberite,mmdk95/cuberite,Altenius/cuberite,marvinkopf/cuberite,johnsoch/cuberite,nichwall/cuberite,Tri125/MCServer,birkett/cuberite,nicodinh/cuberite,nevercast/cuberite,nicodinh/cuberite,guijun/MCServer,electromatter/cuberite,nichwall/cuberite,MuhammadWang/MCServer,mmdk95/cuberite,marvinkopf/cuberite,nounoursheureux/MCServer,MuhammadWang/MCServer,birkett/cuberite,birkett/MCServer,nichwall/cuberite,Haxi52/cuberite,mjssw/cuberite,bendl/cuberite,Fighter19/cuberite,Haxi52/cuberite,tonibm19/cuberite,Howaner/MCServer,linnemannr/MCServer,QUSpilPrgm/cuberite,marvinkopf/cuberite,johnsoch/cuberite,Tri125/MCServer,thetaeo/cuberite,birkett/MCServer,marvinkopf/cuberite,Haxi52/cuberite,SamOatesPlugins/cuberite,zackp30/cuberite,nounoursheureux/MCServer,nevercast/cuberite,mmdk95/cuberite,mc-server/MCServer,jammet/MCServer,zackp30/cuberite,thetaeo/cuberite,mmdk95/cuberite,Tri125/MCServer,birkett/MCServer,birkett/cuberite,nevercast/cuberite,Schwertspize/cuberite,Howaner/MCServer,Schwertspize/cuberite,marvinkopf/cuberite,Altenius/cuberite,tonibm19/cuberite