makechrootpkg: whitelist return code 14 from makepkg

makepkg 5.1 implements error codes, and 14 means that installing the
packages after they were built has failed. We don't care about this
error and would like makechrootpkg to succeed regardless, e.g. for split
packages that are mutually exclusive.

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>

makechrootpkg.in

@@ -226,6 +226,13 @@ _chrootbuild() {
 	# ${1} is OK, but $foo or $1 isn't.
 	# https://bugzilla.sudo.ws/show_bug.cgi?id=765
 	sudo --preserve-env=SOURCE_DATE_EPOCH -iu builduser bash -c 'cd /startdir; makepkg "$@"' -bash "$@"
+	ret=$?
+	case $ret in
+		0|14)
+			return 0;;
+		*)
+			return $ret;;
+	esac
 }
 
 _chrootnamcap() {