Will Thompson authored Jul 08, 2010 and Matthias Clasen committed Jul 08, 2010

You can pass a NULL GValue * to any of g_value_array_insert, _prepend or
_append to add a new, uninitialized value. This is a very useful
shortcut, and it should be documented rather than left languishing in a
comment in the implementation.

Fixes Gnome bug #552363.