2005-08-26  Tor Lillqvist  <tml@novell.com>

	* app/plug-in/plug-in.c (plug_in_prep_for_exec, plug_in_open):
	Instead of passing a child_setup function whose body is ifdeffed
	out on Win32 to g_spawn_async(), pass NULL for child_setup on
	Win32. Newer g_spawn_async() implementations on Win32 warn if
	child_setup functions are attempted to be used, as they don't make
	sense because without any fork(), they are called in the parent
	process.