1 files changed, 4 insertions, 5 deletions
diff --git a/crxmake b/crxmake
index 7f14bee..11022b5 100644..100755
--- a/crxmake
+++ b/crxmake
@@ -1,9 +1,8 @@
-# Purpose: Pack a Chromium extension directory into crx format
+#! /bin/sh
+# Pack a Chromium extension directory into CRX3 format
+# usage: crxmake EXTENSION_DIR KEY_FILE
 
-if test $# -ne 2; then
-  echo "Usage: crxmake.sh <extension dir> <pem path>"
-  exit 1
-fi
+set -efu
 
 dir=$1
 key=$2