makepkg: fix overzealous PGP signature file matching

The regex wasn't rooted at the end of the filename, nor was it matching
a period/dot before the file extension. The end result was this matched a
file named '07_all_sig.patch' which is totally broken.

Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions