Easy way to browse package patches?

[Adam Fabian <awfabian@gmail.com>]

Can anyone point me in the right direction about the easiest way to
browse the applied patches to packages?  I'm thinking something along
the lines of a master CVS repository.

Is there something like a master CVS repository for Debian?
I occasionally like to look to see what patches have been applied to
the software, etc.  I know I can apt-get the source, but that's usually
overkill.  I found cvs.debian.org on Google, but unless I missed it,
it doesn't seem to have CVS for individual packages.

-- 
Adam Fabian
(awfabian@gmail.com)