rg3/youtube-dl — pull request #1984 by alimirjamali (2013-12-16 16:44:57+00:00)
Title: Incorrect variable is used to check whether thumbnail exists

Dear @phihag

I believe in line 848, the correct variable to check is 'thumb_filename' rather than 'infofn'

Kindly advise

Mit freundlichen Gruessen
Ali