bug#1284: 23.0.60; ^M throughout Viper manual

[Eli Zaretskii]

> From: "Drew Adams" <drew.adams@oracle.com>
> Date: Fri, 31 Oct 2008 09:26:02 -0700
> Cc: 
> 
> Also, the manual name should be listed in `dir' as `Viper', not `VIPER'.
> Throughout the Viper manual, Viper is referred to as `Viper', not `VIPER'.

We just honor the manual's request here, which specifies this DIR
entry in viper.texi:

    @direntry
    * VIPER: (viper).       The newest Emacs VI-emulation mode.
                              (also, A VI Plan for Emacs Rescue
                               or the VI PERil.)
    @end direntry

So it sounds like VIPER is actually an acronym, or at least it used to
be.