Add gpg signing to release.sh
Add gpg signing to release.sh

gpg-sign the git tag and the generated tarballs, and upload the signatures
along with the tarballs. Any existing tarball signatures are removed
beforehand.

Signed-off-by: Stephen Kitt <skitt@debian.org>

Modified by Alan Coopersmith to handle gpg vs. gpg2 paths for Solaris.

Signed-off-by: Alan Coopersmith <ea3248f8c2440b9439894eab21ef26209b22bacf@oracle.com>
Reviewed-by: Gaetan Nadon <8a8cc541338200f67d4d0bcb65c78b6166649462@videotron.ca>
Signed-off-by: Peter Hutterer <b9c50af7afa7642f6f854434cda9ffe54ece8b85@who-t.net>

freedesktop-unofficial-mirror/xorg__util__modular,freedesktop-unofficial-mirror/xorg__util__modular,freedesktop-unofficial-mirror/xorg__util__modular