Fix warnings from ldoc

Signed-off-by: Uli Schlachter <psychon@znc.in>

lib/gears/shape.lua

@@ -24,8 +24,8 @@
 
 local module = {}
 
---- Add a rounded rectangle to the current path
--- @note If the radius is bigger than either half side, it will be reduced
+--- Add a rounded rectangle to the current path.
+-- Note: If the radius is bigger than either half side, it will be reduced.
 -- @param cr A cairo content
 -- @param width The rectangle width
 -- @param height The rectangle height

objects/client.c

@@ -2763,8 +2763,8 @@ client_class_setup(lua_State *L)
      */
     signal_add(&client_class.signals, "list");
     /** When 2 clients are swapped
-     * @args client The other client
-     * @args is_source If self is the source or the destination of the swap
+     * @tparam client client The other client
+     * @tparam boolean is_source If self is the source or the destination of the swap
      * @signal .swapped
      */
     signal_add(&client_class.signals, "swapped");