(special form)
END
END delimits the end of a procedure that is defined with TO.
END is not really a command.
As a result, procedures that manipulate other procedures don't work on END.
For example, PROCEDUREP "END
outputs FALSE.
TO ECHO :times :thing REPEAT :times [PRINT :thing] END ECHO 2 "Hello
Hello HelloECHO 3 "Bye
Bye Bye Bye