fix another two potential memory leaks with GC enabled (another two instances of casting a CoreFoundation type with a +1 retain count and sending autorelease, which is a noop with GC)
fix another two potential memory leaks with GC enabled (another two instances of casting a CoreFoundation type with a +1 retain count and sending autorelease, which is a noop with GC)

chashion/growl,timbck2/growl,an0nym0u5/growl,nochkin/growl,xhruso00/growl,morganestes/morganestes-growl,timbck2/growl,nkhorman/archive-growl,chashion/growl,nkhorman/archive-growl,an0nym0u5/growl,nochkin/growl,xhruso00/growl,ylian/growl,nagyistoce/growl,an0nym0u5/growl,nkhorman/archive-growl,nochkin/growl,nochkin/growl,chashion/growl,tectronics/growl,morganestes/morganestes-growl,SalrJupiter/growl,nochkin/growl,nagyistoce/growl,tectronics/growl,nagyistoce/growl,tectronics/growl,nkhorman/archive-growl,SalrJupiter/growl,chashion/growl,morganestes/morganestes-growl,tectronics/growl,an0nym0u5/growl,ylian/growl,SalrJupiter/growl,nochkin/growl,SalrJupiter/growl,nagyistoce/growl,tectronics/growl,nagyistoce/growl,nagyistoce/growl,SalrJupiter/growl,ylian/growl,timbck2/growl,an0nym0u5/growl,SalrJupiter/growl,ylian/growl,xhruso00/growl,xhruso00/growl,ylian/growl,timbck2/growl,morganestes/morganestes-growl,timbck2/growl,xhruso00/growl,an0nym0u5/growl,nkhorman/archive-growl,chashion/growl,nkhorman/archive-growl,xhruso00/growl,chashion/growl,tectronics/growl,morganestes/morganestes-growl,morganestes/morganestes-growl,ylian/growl,timbck2/growl