rg3/youtube-dl — pull request #3568 by MikeCol (2014-08-22 20:44:57+00:00)
Title: changed _VALID_URL to allow for country specific subdomains

xhamster has started to use (and redirect to) country specific subdomains like de.xhamster.com (perhaps for load balancing reasons or a CDN).

The chanced regex now allows all prefixes.