
  [;1m-spec unregister(RegName) -> true when RegName :: atom().[0m

  Removes the registered name [;;4mRegName[0m associated with a process
  identifier or a port identifier, for example:

    > unregister(db).
    true

  Users are advised not to unregister system processes.

  Failure: [;;4mbadarg[0m if [;;4mRegName[0m is not a registered name.
