Index: commands/pm/pm.drush.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/drush/commands/pm/pm.drush.inc,v
retrieving revision 1.42
diff -u -p -r1.42 pm.drush.inc
--- commands/pm/pm.drush.inc	29 Jul 2009 04:42:52 -0000	1.42
+++ commands/pm/pm.drush.inc	8 Aug 2009 04:23:16 -0000
@@ -413,7 +413,10 @@ function drush_pm_info() {
   // We don't provide for other options here, so we supply an explicit path.
   drush_include_engine('update_info', 'drupal', NULL, DRUSH_BASE_PATH . '/commands/pm/update_info');
 
-  $projects = func_get_args();
+  if(! $projects = func_get_args()) {
+    return drush_set_error('DRUSH_PM_PROJECT_NOT_FOUND', dt('Too few arguments. Include a project name. Example: drush info cck'));
+  }
+
   $projects = drupal_map_assoc($projects);
   $info = pm_get_project_info($projects);