stream.hls: Fix last argument conflict.
stream.hls: Fix last argument conflict.

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