From a2ede6380b357746cd829929929df51a5fd27c7a Mon Sep 17 00:00:00 2001
From: Rotem Liss <rotem@users.mediawiki.org>
Date: Fri, 9 May 2008 14:32:28 +0000
Subject: [PATCH] Several fixes.

---
 maintenance/language/checkLanguage.inc | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/maintenance/language/checkLanguage.inc b/maintenance/language/checkLanguage.inc
index 0571bdaa09..cf425e9be5 100644
--- a/maintenance/language/checkLanguage.inc
+++ b/maintenance/language/checkLanguage.inc
@@ -358,9 +358,14 @@ class CheckExtensionsCLI extends CheckLanguageCLI {
 				}
 			}
 		} else {
-			$group = MessageGroup::getGroup( 'ext-' . $extension );
-			$extension = new extensionLanguages( $group );
-			$this->extensions = array( $extension );
+			$group = MessageGroups::getGroup( 'ext-' . $extension );
+			if( $group ) {
+				$extension = new extensionLanguages( $group );
+				$this->extensions = array( $extension );
+			} else {
+				print "No such extension $extension.\n";
+				$this->extensions = array();
+			}
 		}
 	}
 
-- 
2.20.1