Fix memory leak
Fix memory leak

The reference counter for "rules" object wasn't decremented when yara_load or yara_compile failed.

foreni-packages/yara,VirusTotal/yara,pombredanne/yara,mgoffin/yara,VirusTotal/yara,VirusTotal/yara,hillu/yara,tanium/yara,pombredanne/yara,smaudet/yara,jshufelt/yara,tanium/yara,kallanreed/yara,plusvic/yara,msuvajac/yara,Security513/yara,smaudet/yara,hillu/yara,cblichmann/yara,neatsun/yara,tanium/yara,rednaga/yara,rayyang2000/yara,jpypi/yara,VirusTotal/yara,rednaga/yara,Security513/yara,mgoffin/yara,neatsun/yara,tdr130/yara,jshufelt/yara,smaudet/yara,frbapolkosnik/yara,kallanreed/yara,plusvic/yara,cblichmann/yara,cblichmann/yara,beikezcs/yara,hillu/yara,beikezcs/yara,plusvic/yara,frbapolkosnik/yara,wxsBSD/yara,jpypi/yara,msuvajac/yara,plusvic/yara,wxsBSD/yara,mgoffin/yara,cblichmann/yara,tdr130/yara,rednaga/yara,neatsun/yara,jshufelt/yara,plusvic/yara,jpypi/yara,pombredanne/yara,pombredanne/yara,bmagistro/yara,MeteorAdminz/yara,MeteorAdminz/yara,MeteorAdminz/yara,foreni-packages/yara,beikezcs/yara,hillu/yara,kallanreed/yara,smaudet/yara,Security513/yara,wxsBSD/yara,tdr130/yara,wxsBSD/yara,mgoffin/yara,pombredanne/yara,VirusTotal/yara,cblichmann/yara,msuvajac/yara,rayyang2000/yara,frbapolkosnik/yara,rayyang2000/yara,frbapolkosnik/yara,bmagistro/yara,jshufelt/yara,wxsBSD/yara,bmagistro/yara,foreni-packages/yara,hillu/yara