bacman: small code cleanup

This includes:
 - Quoting fixes.
 - Drop deprecated mktemp option -p.
 - Set extglob nullglob shell options at the top.
 - Use extended globbing instead of regex to match %HEADER% in pacman db.

Signed-off-by: lolilolicon <lolilolicon@gmail.com>

0 files changed, 0 insertions, 0 deletions