docs/31109: [patch] replace gif images w/ png ones due to patent license

[Andrew Pantyukhin]

Synopsis: [patch] replace gif images w/ png ones due to patent license

State-Changed-From-To: suspended->closed
State-Changed-By: sat
State-Changed-When: Sat Oct 7 20:48:12 UTC 2006
State-Changed-Why: 
GIF patents are history as of 1 October 2006
http://www.gnu.org/philosophy/gif.html

http://www.freebsd.org/cgi/query-pr.cgi?pr=31109