keyfile: ignore Emacs interlocking link named .#<file_name> (rh #987629)

https://bugzilla.redhat.com/show_bug.cgi?id=987629
http://stackoverflow.com/questions/5738170/why-does-emacs-create-temporary-symbolic-links-for-modified-files

src/settings/plugins/keyfile/utils.c

@@ -99,6 +99,7 @@ nm_keyfile_plugin_utils_should_ignore_file (const char *filename)
 	    || check_suffix (base, PEM_TAG)                                 /* 802.1x certificates and keys */
 	    || check_suffix (base, DER_TAG)                                 /* 802.1x certificates and keys */
 	    || check_mkstemp_suffix (base)                                  /* temporary files created by mkstemp() */
+	    || check_prefix (base, ".#")                                    /* Emacs locking file (link) */
 	    || base[strlen (base) - 1] == '~')
 		ignore = TRUE;