*
* <local-addr>,<peer-addr>,<mtu>,<proto>
*
- * As for slattach. Supported protocols are slip, cslip, and
- * adaptive. Alternatively, set to `debug' to print debugging info
- * and exit. <local-addr> is address of the interface to be created
+ * As for slattach. The only supported protocol is slip.
+ * Alternatively, set to `debug' to print debugging info and
+ * exit. <local-addr> is address of the interface to be created
* on the local system; <peer-addr> is the address of the
* point-to-point peer. They must be actual addresses (not
* hostnames).