Move file is regular check to load_from_file to use fstat() instead of

Move file is regular check to load_from_file to use fstat() instead of

2004-10-27  Ray Strode  <rstrode@redhat.com>

	* glib/gkeyfile.c:
	 (g_key_file_load_from_fd),
	 (g_key_file_load_from_file):
	 Move file is regular check to load_from_file to use
	 fstat() instead of race prone g_file_test().  Don't
	 clear/init until needed. Change error messages to be
	 more consistent.
	 (g_key_file_load_from_data),
	 (g_key_file_load_from_data_dirs),
	 (g_key_file_parse_data),
	 (g_key_file_get_value),
	 (g_key_file_get_string),
	 (g_key_file_set_string),
	 (g_key_file_get_string_list),
	 (g_key_file_set_string_list),
	 (g_key_file_set_locale_string),
	 (g_key_file_get_locale_string),
	 (g_key_file_set_locale_string_list),
	 (g_key_file_get_boolean),
	 (g_key_file_set_boolean),
	 (g_key_file_get_boolean_list),
	 (g_key_file_set_boolean_list),
	 (g_key_file_get_integer),
	 (g_key_file_get_integer_list),
	 (g_key_file_set_integer_list),
	 (g_key_file_remove_key):
	 Add more g_return_*if_fail checks for public functions.