99c87a66c620e2a9f9b19bf095fdc4ae9b561c10 Fix update method to return the message string.
diff --git a/panels.install b/panels.install
index 9ee4d93..6dd5dc9 100644
--- a/panels.install
+++ b/panels.install
@@ -506,7 +506,6 @@ function panels_update_7303() {
 function panels_update_7304() {
   // Load the schema.
   $schema = panels_schema_7();
-  $msg = array();
 
   // Add the window_title column to the display table.
   $table = 'panels_display';
@@ -515,10 +514,7 @@ function panels_update_7304() {
   if (!db_field_exists($table, $field)) {
     $spec = $schema[$table]['fields'][$field];
     db_add_field($table, $field, $spec);
-    $msg[] = t('Added panels_display.window_title column.');
-  }
-
-  if (empty($msg)) {
-    $msg[] = t('window_title column already present in the panels_display table.');
+    return t('Added panels_display.window_title column.');
   }
+  return t('Window_title column already present in the panels_display table.');
 }