Testing bugzilla patch viewer for gcc patches

[Daniel Berlin <dberlin at dberlin dot org>]

Though it doesn't yet handle context format patches yet, please give 
the patch viewer a try for bugzilla attachments.

I've installed it on the dberlin.org bugzilla installation, and will 
install it to the gcc bugzilla installation if nobody has any problems 
with it and people think it would be useful.

If you want to see an example of what it does, go to 
http://www.dberlin.org/bugzilla/show_bug.cgi?id=9639

choose the "diff" link near the attachment labeled "unified format 
patch".

Note that it auto-corrects the file paths in the patch to be based off 
the CVS root (if you just click on the attachment name itself, rather 
than the diff link, you'll see the patch is actually originally 
assuming it's being applied in gcc/gcc).

I also don't happen to have another version of this patch around (the 
others on the bug are context diffs, which don't work right yet), so 
the cool interdiff between patch attachments can't be seen.

However, you can change the amount of context on the patch, etc.

As I said, let me know if people think this is useful to have, and i'll 
add the code to gcc.gnu.org's bugzilla installation.

--Dan