-complete --command youtube-dl --long-option write-sub --description 'write subtitle file'
-complete --command youtube-dl --long-option write-auto-sub --description 'write automatic subtitle file (youtube only)'
-complete --command youtube-dl --long-option all-subs --description 'downloads all the available subtitles of the video'
-complete --command youtube-dl --long-option list-subs --description 'lists all available subtitles for the video'
-complete --command youtube-dl --long-option sub-format --description 'subtitle format (default=srt) ([sbv/vtt] youtube only)'
-complete --command youtube-dl --long-option sub-lang --description 'languages of the subtitles to download (optional) separated by commas, use IETF language tags like '"'"'en,pt'"'"''
-complete --command youtube-dl --long-option username --short-option u --description 'login with this account ID'
-complete --command youtube-dl --long-option password --short-option p --description 'account password. If this option is left out, youtube-dl will ask interactively.'
-complete --command youtube-dl --long-option twofactor --short-option 2 --description 'two-factor auth code'
-complete --command youtube-dl --long-option netrc --short-option n --description 'use .netrc authentication data'
-complete --command youtube-dl --long-option video-password --description 'video password (vimeo, smotri)'
-complete --command youtube-dl --long-option extract-audio --short-option x --description 'convert video files to audio-only files (requires ffmpeg or avconv and ffprobe or avprobe)'
-complete --command youtube-dl --long-option audio-format --description '"best", "aac", "vorbis", "mp3", "m4a", "opus", or "wav"; "%default" by default'
-complete --command youtube-dl --long-option audio-quality --description 'ffmpeg/avconv audio quality specification, insert a value between 0 (better) and 9 (worse) for VBR or a specific bitrate like 128K (default %default)'
+complete --command youtube-dl --long-option write-sub --description 'Write subtitle file'
+complete --command youtube-dl --long-option write-auto-sub --description 'Write automatic subtitle file (YouTube only)'
+complete --command youtube-dl --long-option all-subs --description 'Download all the available subtitles of the video'
+complete --command youtube-dl --long-option list-subs --description 'List all available subtitles for the video'
+complete --command youtube-dl --long-option sub-format --description 'Subtitle format, accepts formats preference, for example: "srt" or "ass/srt/best"'
+complete --command youtube-dl --long-option sub-lang --description 'Languages of the subtitles to download (optional) separated by commas, use IETF language tags like '"'"'en,pt'"'"''
+complete --command youtube-dl --long-option username --short-option u --description 'Login with this account ID'
+complete --command youtube-dl --long-option password --short-option p --description 'Account password. If this option is left out, youtube-dl will ask interactively.'
+complete --command youtube-dl --long-option twofactor --short-option 2 --description 'Two-factor auth code'
+complete --command youtube-dl --long-option netrc --short-option n --description 'Use .netrc authentication data'
+complete --command youtube-dl --long-option video-password --description 'Video password (vimeo, smotri)'
+complete --command youtube-dl --long-option extract-audio --short-option x --description 'Convert video files to audio-only files (requires ffmpeg or avconv and ffprobe or avprobe)'
+complete --command youtube-dl --long-option audio-format --description 'Specify audio format: "best", "aac", "vorbis", "mp3", "m4a", "opus", or "wav"; "%default" by default'
+complete --command youtube-dl --long-option audio-quality --description 'Specify ffmpeg/avconv audio quality, insert a value between 0 (better) and 9 (worse) for VBR or a specific bitrate like 128K (default %default)'