usage: take exit code as param

thus it can correctly indicate success/fail status instead of always
indicating failure. when a user asks for usage with -u|--usage then we
should exit in success mode rather than failure as when usage in printed
in response to incorrect usage.

Gbp-Dch: Short

1 files changed, 1 insertions, 1 deletions

diff --git a/frontend/lb b/frontend/lb
index 1d8b89ab6..4f4aa2ead 100755
--- a/frontend/lb
+++ b/frontend/lb
@@ -25,7 +25,7 @@ Arguments frontend "${@}"
 eval set -- "${REMAINING_ARGS}"
 
 if [ -z "${1}" ]; then
-	Usage
+	Usage 1
 fi
 
 COMMAND="${1}"