makepkg: use regex to match options for privilege escalation

Eases maintanence if we need to add further options in the future.

Extracted from a patch supplied by Andres P <aepd87@gmail.com>

Signed-off-by: Allan McRae <allan@archlinux.org>

scripts/makepkg.sh.in

@@ -372,7 +372,7 @@ download_file() {
 run_pacman() {
 	local cmd
 	printf -v cmd "%q " "$PACMAN" $PACMAN_OPTS "$@"
-	if (( ! ASROOT )) && [[ $1 != "-T" && $1 != "-Qq" ]]; then
+	if (( ! ASROOT )) && [[ ! $1 =~ ^-(T|Qq)$" ]]; then
 		if [ "$(type -p sudo)" ]; then
 			cmd="sudo $cmd"
 		else