L10n regression in 1.8.0.rc2: diffstat summary (git diff --stat, git format-patch)

Hi!

The output of "git format-patch" and "git diff --stat" no longer becomes localized when using 1.8.0.rc2, compared to 1.7.12

Running both versions of "git format-patch -1" from the same repository, with the same settings otherwise, has 1.7.12 output the diffstat summary in Swedish, while 1.8.0.rc2 doesn't:

   diff 1.7.12.txt 1.8.0.rc2.txt
   8c8
   <  1 fil ändrad, 1 tillägg(+)
   ---
   >  1 file changed, 1 insertion(+)
   18c18
   < 1.7.12
   ---
   > 1.8.0.rc2

The same applies to "git diff --stat" and "git show --stat". I can understand for "git format-patch" to default to English (but as its output is ignored on read, it doesn't hurt to have it localized), but for diff and show, it is annoying (even if the rest of the "git diff" output also needs to be translated eventually).