Comment 10 for bug 1204195

Updated debdiff for quantal.

We previously had strange behaviour where our patches in debian/patches/ were also getting rolled into debian/patches/debian-changes.

The issue turned out to be an erroneous debian/source/options setting which told dpkg to force-collapse changes into one patch. Annoyingly, this option was silently ignored on precise, but implemented in quantal, so it worked when I tested locally but failed on sbuild.