Document that the result is guaranteed to be non-NULL.

Document that the result is guaranteed to be non-NULL.

2004-11-04  Tor Lillqvist  <tml@iki.fi>

	* glib/gconvert.c (g_filename_display_name): Document that the
	result is guaranteed to be non-NULL.

	* glib/gfileutils.c (get_contents_stdio, get_contents_regfile,
	get_contents_posix, get_contents_win32, g_file_open_tmp,
	g_file_read_link): Use g_filename_display_name() for error
	messages.
	(g_mkstemp): Document that the template should be in the GLib file
	name encoding.
	(g_file_open_tmp): Ditto. Also document that the actual name
	returned is also in the GLib file name encoding.