Qt4: fix a memleak in the extensions menu.

(cherry picked from commit c57caf76b5b779d964acd597bfbc76528eafaa04)
Signed-off-by: Rémi Duraffort <ivoire@videolan.org>

modules/gui/qt4/extensions_manager.cpp

@@ -171,12 +171,15 @@ void ExtensionsManager::menu( QMenu *current )
                     menuMapper->setMapping( action,
                                             MENU_MAP( pi_ids[i], i_ext ) );
                     CONNECT( action, triggered(), menuMapper, map() );
+                    free( ppsz_titles[i] );
                 }
                 if( !i_num )
                 {
                     action = submenu->addAction( qtr( "Empty" ) );
                     action->setEnabled( false );
                 }
+                free( ppsz_titles );
+                free( pi_ids );
             }
             else
             {

modules/misc/lua/extension.c

@@ -605,7 +605,7 @@ int lua_ExtensionWidgetClick( extensions_manager_t *p_mgr,
  * @param p_mgr
  * @param p_ext
  * @param pppsz_titles Pointer to NULL. All strings must be freed by the caller
- * @param ppi_ids Pointer to NULL. Must be feed by the caller.
+ * @param ppi_ids Pointer to NULL. Must be freed by the caller.
  * @note This function is allowed to run in the UI thread. This means
  *       that it MUST respond very fast.
  * @todo Remove the menu() hook and provide a new function vlc.set_menu()