Updated: doxygen-1.8.9.1-2

[David Stacey]

The following packages have been updated in the Cygwin distribution:

* doxygen-1.8.9.1-2
* doxygen-doxywizard-1.8.9.1-2

Doxygen is a documentation system for C++, C, Java, Objective-C, IDL
(Corba and Microsoft flavours) and to some extent PHP, C#, and D.

This build contains a patch from Fedora to remove an erroneous
\backmatter that can appear in Latex output. See:
https://bugzilla.redhat.com/show_bug.cgi?id=1198355

Dave