Initialize new_match->chain_length
Initialize new_match->chain_length

Because of the change introduced in commit 8b7eb764e70e8e45de4e935ccb620965c5a33b9e chain_length must be initialised to avoid a comparison with random value.

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