From d751745554b8c2a5b0cfc7c053a6dbc0dcafdc02 Mon Sep 17 00:00:00 2001
From: hk <hkbakke@gmail.com>
Date: Tue, 24 Jan 2017 09:09:12 +0100
Subject: [PATCH] print usage for all invalid options

---
 src/tc-gen.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/tc-gen.sh b/src/tc-gen.sh
index a4b4c1f..ca072c0 100755
--- a/src/tc-gen.sh
+++ b/src/tc-gen.sh
@@ -365,7 +365,7 @@ apply_ingress_policing () {
 
 # All rates should be given in mbit/s
 while getopts ":i:u:d:b:f:q:c:xV" OPT; do
-    case $OPT in
+    case ${OPT} in
         i)
             IF_NAME="${OPTARG}"
             ;;
@@ -391,7 +391,7 @@ while getopts ":i:u:d:b:f:q:c:xV" OPT; do
             print_version
             exit 0
             ;;
-        \?)
+        *)
             print_usage
             exit 1
             ;;