mk: use zero exit instead, to run trees

that way, with set -u -e, we aren't risking some
buggy sh implementations from causing an error exit
where it shouldn't.

Signed-off-by: Leah Rowe <leah@libreboot.org>

mk

@@ -24,13 +24,14 @@ main()
 	case "$cmd" in
 	version) printf "%s\nWebsite: %s\n" "$relname" "$projectsite" ;;
 	release|download|inject) $cmd "$@" ;;
-	-*) return 1 ;;
+	-*) return 0 ;;
 	*) err "bad command" ;;
 	esac
 	set -u -e # some commands disable them. turn them on!
+	return 1
 }
 
-main "$@" && exit 0
+main "$@" || exit 0
 
 . "include/git.sh"
 . "include/tree.sh"