Replace http://the-feed.tld by correct feed

[t2d]

• I have read the CONTRIBUTING.md and followed the provided tips

Explain the Problem

When a feed is failing, a special title of the html object is set. However, the message should include the correct URI of the feed, not a placeholder.

Update failed more than 50 times: Feed not found: either the website does not provide a feed or blocks access. To rule out blocking, try to download the feed on your server's command line using curl: curl http://the-feed.tld

System Information

• News app version: 8.3.0
• ownCloud version: 9.0.0
• Browser and version: Firefox 45.0.1
• Distribution and version: Debian Wheezy