<Help>

[Mike McMahon <MMcM at SCRC-TENEX>]

    Date: 27 June 1982 07:19-EDT
    From: Kent M. Pitman <kmp at MIT-MC>
    * <Help> prompts "Doc A,C,D,L,V,W,<Space>,?: ", but does not mention "U" which
      is an allowable option at that point. The help text you get when you type "?"
      mentions "U", however.
It lists U iff it will work.