bug#64724: 30.0.50; Inconsistency between manual, comments in the code, and implementation of point adjustment

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: Eli Zaretskii <eliz@gnu.org>,  64724@debbugs.gnu.org
> Date: Fri, 21 Jul 2023 10:58:11 -0400
> 
> -  Emacs cannot display the cursor when point is in the middle of a
> -sequence of text that has the @code{display} or @code{composition}
> -property, or is invisible.  Therefore, after a command finishes and
> -returns to the command loop, if point is within such a sequence, the
> -command loop normally moves point to the edge of the sequence, making this
> -sequence effectively intangible.
> +  When point is in the middle of a sequence of text that has the
> +@code{display} or @code{composition} property, or is invisible, Emacs
                                                                   ^^^^^
That "Emacs" is redundant.

> +there can be several buffer positions that result in the cursor being
> +displayed at same place.
             ^^^^^^^^^^^^^
I'd say "at the same place on screen".