pointer syntax instead of @signaldef as this puts a summary of
the signal names at the top of the page and sorts alphabetically.
(Note: the syntax is similar to Vala signal syntax).
git-svn-id: https://geany.svn.sourceforge.net/svnroot/geany/trunk@5065 ea778897-0a13-0410-b9d1-a72fbfd435f5
