version=4 opts="filenamemangle=s%(?:.*?)?v?(\d[\d.]*)\.tar\.gz%youtube-dl-$1.tar.gz%,dversionmangle=s/\+dfsg\d*$//" \ https://github.com/rg3/youtube-dl/releases \ (?:.*?/)?v?(\d[\d.]*)\.tar\.gz debian uupdate