Punctuation is important.

Author: Mohammed Karim

system/Cache/Handlers/MemcachedHandler.php

@@ -168,7 +168,7 @@ public function initialize()
 		catch (\Exception $e)
 		{
 			// If an \Exception occurs, convert it into a CriticalError exception and throw it.
-			throw new CriticalError('Cache: Memcache(d) connection refused (' . $e->getMessage() . ')');
+			throw new CriticalError('Cache: Memcache(d) connection refused (' . $e->getMessage() . ').');
 		}
 	}
 

system/Cache/Handlers/PredisHandler.php

@@ -112,7 +112,7 @@ public function initialize()
 		catch (\Exception $e)
 		{
 			// thrown if can't connect to redis server.
-			throw new CriticalError('Cache: Predis connection refused (' . $e->getMessage() . ')');
+			throw new CriticalError('Cache: Predis connection refused (' . $e->getMessage() . ').');
 		}
 	}