title: youtube-dl option for getting video titles and NOT downloading videos
body: <p>I want to get video titles from a video list.
  <br>
  <br>
  <code>--flat-playlist</code> option returns video id's, and I can't find an options that returns video titles.   </p>
  
  <pre><code>youtube-dl --flat-playlist "https://app.pluralsight.com/library/courses/openid-and-oauth2-securing-angular-apps"
  [pluralsight:course] openid-and-oauth2-securing-angular-apps: Downloading JSON metadata
  [download] Downloading playlist: Securing Angular Apps with OpenID Connect and OAuth 2
  [pluralsight:course] playlist Securing Angular Apps with OpenID Connect and OAuth 2: Collected 58 video ids (downloading 58 of them)
  [download] Downloading video 1 of 58
  [download] Downloading video 2 of 58
  [download] Downloading video 3 of 58
  ...
  
  </code></pre>
  
  <p><br>
  <br>
  <code>--get-filename</code> option and <code>--get-title</code> option, prints the name just for the first video, then they throw <code>ExtractorError('No video formats found')</code>:</p>
  
  <pre><code>youtube-dl --get-title "https://app.pluralsight.com/library/courses/openid-and-oauth2-securing-angular-apps" --verbose
  </code></pre>