[PATCH 0/6] Detect non email patches in git-mailinfo

After looking at a number of additional quit patches I noticed
a small problem with using the current git-mailinfo.  On patches
with out any leading headers git-mailinfo can get confused and
loose a bit of information.

So far I have only seen this in the quilt from Andi Kleen but
it is fairly straight forward to fix.

What follows is a small patch series that one small step at
a time refactors (and I think simplifies) git-mailinfo 
so that it can detect and cope with a file without any
email headers.

Eric