- * Mac OS X Leopard uses an innovative X display naming
- * convention in which the entire display name is the path to
- * the Unix socket, including the trailing :0 which only
- * _looks_ like a display number. Heuristically, I think
- * detecting this by means of a leading slash ought to be
- * adequate.
+ * In special circumstances (notably Mac OS X Leopard), we'll
+ * have been passed an explicit Unix socket path.