From ed493b84e0ba5ef856b7534268fdb8dbeaea6d6b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Andr=C3=A9?= <martin.andre@kvhasia.com>
Date: Mon, 29 Dec 2014 15:17:54 +0900
Subject: [PATCH] Make build script respond to `-h` option

It is usually considered good practice for a script to respond to both
short style `-h` and long style `--help` options to display help
message.

This commits adds support for short style `-h` option.

Change-Id: I8426b5ec136d08b3a476beea3cb983089e08c401
---
 tools/build-docker-image | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/build-docker-image b/tools/build-docker-image
index 370463dd27..df58be8073 100755
--- a/tools/build-docker-image
+++ b/tools/build-docker-image
@@ -10,7 +10,7 @@ TAG=$(git rev-parse --short HEAD)
 
 usage () {
     cat <<EOF
-$0: usage: $0 [options]
+Usage: $0 [options]
 
 Options:
 
@@ -25,14 +25,14 @@ EOF
 [ -f $IMGDIR/.buildconf ] && . $IMGDIR/.buildconf
 [ -f $TOPDIR/.buildconf ] && . $TOPDIR/.buildconf
 
-ARGS=$(getopt -o 'n:t:pN' -l help,namespace:,push,release,tag:,no-cache -- "$@") || { usage >&2; exit 2; }
+ARGS=$(getopt -o hn:t:pN -l help,namespace:,push,release,tag:,no-cache -- "$@") || { usage >&2; exit 2; }
 
 eval set -- "$ARGS"
 
 while :; do
     case "$1" in
 
-    (--help)    usage
+    (--help|-h) usage
                 exit 0
                 ;;