Log Message:
youtube-dl: Update to 20200324

pkgsrc changes:
 - Update patch-youtube__dl_extractor_la7.py tests with the version shared
   upstream.  Thanks to Elia Geretto!

Changes:
20200324
--------
Core
- [utils] Revert support for cookie files with spaces used instead of tabs

Extractors
* [teachable] Update upskillcourses and gns3 domains
* [generic] Look for teachable embeds before wistia
+ [teachable] Extract chapter metadata (#24421)
+ [bilibili] Add support for player.bilibili.com (#24402)
+ [bilibili] Add support for new URL schema with BV ids (#24439, #24442)
* [limelight] Remove disabled API requests (#24255)
* [soundcloud] Fix download URL extraction (#24394)
+ [cbc:watch] Add support for authentication (#19160)
* [hellporno] Fix extraction (#24399)
* [xtube] Fix formats extraction (#24348)
* [ndr] Fix extraction (#24326)
* [nhk] Update m3u8 URL and use native HLS downloader (#24329)
- [nhk] Remove obsolete rtmp formats (#24329)
* [nhk] Relax URL regular expression (#24329)
- [vimeo] Revert fix showcase password protected video extraction (#24224)