manpage has useless whatis-entry

The title of the man page could be a bit more informative - Debian uses a program called lintian to find both bigger problems and minor (like this one). See the info on the tag from lintian here:
http://lintian.debian.org/tags/manpage-has-useless-whatis-entry.html

One suggestion is in the commit in this pull-request, but I am open for other suggestions and ideas - It might be a good idea to not mention GTK+ in the description, since we have fe-text too...