There's no way this isn't some long-running joke:
"Just as ':print'. Was apparently added to Vi for
people that keep the shift key pressed too long..."
Note: A user command can overrule this command.
Regarding ':X': the command has been removed for a while, but the
documentation must have been missed, so remove it here.
Reviewed-by: Justin M. Keyes <justinkz@gmail.com>
Helped-by: @jusga