CComponentsFrmClock: add missing comment

Origin commit data
------------------
Commit: 220c479b9e
Author: Thilo Graf <dbt@novatux.de>
Date: 2013-06-04 (Tue, 04 Jun 2013)

src/gui/components/cc_frm_clock.h

@@ -115,6 +115,7 @@ class CComponentsFrmClock : public CComponentsForm
 		///show clock on screen
 		void paint(bool do_save_bg = CC_SAVE_SCREEN_YES);
 
+		///reinitialize clock contents
 		void refresh() { initCCLockItems(); }
 };