+M - Adjust User Mode
+Syntax: M <id> <remoteip> <remoteport> +<mode changes>
+Example: M 5 192.168.1.10 23367 +iwg
+States: REGISTER, HURRY
+Next State: -
+Comments: Indicates a set of user mode changes to be applied to the
+ client.
+Compatibility: This is an Undernet extension and ircd does not support
+ this message.
+