Link Issue in about license page

[anik4e]

Page:-
​https://wordpress.org/about/license/

Screenshot-
​http://prntscr.com/qlrdmn

ISSUE 1:
Replace this link-
​https://drupal.org/licensing/faq/
With
​https://www.drupal.org/about/licensing

ISSUE 2:
Replace this link-
​https://www.s9y.org/
With
​https://docs.s9y.org/

ISSUE 3:
This link is not working at all.
​http://habariproject.org/en/

[anik4e]

Thanks @SergeyBiryukov hope WordPress directory page will update soon.

[coffee2code]

In 9417:

Main theme: Update links for Drupal's licensing page and for Serendipity.

Props anik4e.
See #4959.

[coffee2code]

In 9418:

Main theme: Remove link to Habari from licensing page.

The project is effectively abandoned. Their site 502s and appears to have done so for the last year. The GitHub repo hasn't had any activity in over 3 years.

Props anik4e.
Fixes #4959.

[tobifjellner]

@coffee2code in https://meta.trac.wordpress.org/changeset/9418/ you probably also should have removed 1$ in %1$s, now that there is only one variable injected in the string.

[coffee2code]

In 9423:

Main theme: Remove numbering from string replacement placeholder since there is only one replacement.

Props tobifjellner.
Fixes #4959.