plugins.youtube: Update config regex.
plugins.youtube: Update config regex.

gtmanfred/livestreamer,okaywit/livestreamer,melmorabity/streamlink,gravyboat/streamlink,streamlink/streamlink,wlerin/streamlink,Feverqwe/livestreamer,programming086/livestreamer,jtsymon/livestreamer,gravyboat/streamlink,chhe/livestreamer,Saturn/livestreamer,intact/livestreamer,derrod/livestreamer,charmander/livestreamer,intact/livestreamer,fishscene/streamlink,sbstp/streamlink,mmetak/streamlink,javiercantero/streamlink,back-to/streamlink,Klaudit/livestreamer,blxd/livestreamer,lyhiving/livestreamer,melmorabity/streamlink,flijloku/livestreamer,chrippa/livestreamer,lyhiving/livestreamer,Dobatymo/livestreamer,Masaz-/livestreamer,Saturn/livestreamer,sbstp/streamlink,javiercantero/streamlink,wolftankk/livestreamer,Masaz-/livestreamer,ethanhlc/streamlink,chhe/streamlink,back-to/streamlink,flijloku/livestreamer,Dobatymo/livestreamer,caorong/livestreamer,beardypig/streamlink,hmit/livestreamer,streamlink/streamlink,chhe/livestreamer,wolftankk/livestreamer,mmetak/streamlink,wlerin/streamlink,gtmanfred/livestreamer,charmander/livestreamer,jtsymon/livestreamer,derrod/livestreamer,beardypig/streamlink,fishscene/streamlink,ethanhlc/streamlink,bastimeyer/streamlink,chrippa/livestreamer,programming086/livestreamer,Feverqwe/livestreamer,chhe/streamlink,okaywit/livestreamer,blxd/livestreamer,bastimeyer/streamlink,hmit/livestreamer,Klaudit/livestreamer,caorong/livestreamer