Fixes drupal_upgrade usage check

diff --git a/files/drupal b/files/drupal
index 00bdb9e3fbbefefe290bf762f9f02ec5f481979d..644b7765f42516ebb8f016f6d0c2ac96d3d16cd3 100755 (executable)
--- a/files/drupal
+++ b/files/drupal
@@ -222,8 +222,8 @@ function drupal_download {
 
 # Upgrade a drupal instance using upstream source
 function drupal_upgrade {
-  if [ "$#" != "2" ]; then
-    echo "Usage: `basename $0` upgrade <old_version> <new_version>"
+  if [ "$#" != "1" ]; then
+    echo "Usage: `basename $0` upgrade <series|old_version> [new_version]"
     exit 1
   fi