To report a bug in the man page, please report them upstream at:

http://www.opengl.org/sdk/docs/man4/

For example:

https://www.khronos.org/bugzilla/show_bug.cgi?id=650

 -- Mathieu Malaterre <malat@debian.org>  Mon, 13 May 2013 12:01:58 +0200
