bug#19422: 25.0.50; `remove-overlays` needs one additional `point` at end of narrowed region.

[Keith David Bershatsky]

The function `remove-overlays`, when used without any arguments, needs one 
additional `point` at the end of a narrowed region to effectively remove an 
overlay at the very end of said region.  Here is something that I'm using for 
my own setup, which adds the missing `point`:

    (defun lawlist-remove-overlays (beg end name val)
      "Remove the overlays."
      ;; DEBUGGING
      ;; (unless (and beg end name val)
      ;;   (message "ERROR -- beg:  %s | end:  %s | name:  %s | val:  %s" beg 
end name val))
      (let* (
          (point-max (point-max))
          (point-min (point-min))
          (narrowed-p (not (equal (- point-max point-min) (buffer-size))))
          (beg (if beg beg point-min))
          (end
            (cond
              ((and
                  (not narrowed-p)
                  end)
                end)
              ((and
                  narrowed-p
                  end)
                (1+ end))
              ((and
                  narrowed-p
                  (null end))
                (1+ point-max))
              ((and
                  (not narrowed-p)
                  (null end))
                point-max))) )
        (when (and beg end name val)
          (overlay-recenter end)
          (dolist (o (overlays-in beg end))
            (when (eq (overlay-get o name) val)
              (delete-overlay o))))))

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In GNU Emacs 25.0.50.1 (x86_64-apple-darwin10.8.0, NS appkit-1038.36 Version 
10.6.8 (Build 10K549))
 of 2014-10-01 on MP.local
Repository revision: 117996 dmantipov@yandex.ru-20141001132108-zdsxru2390mqyjlu
Windowing system distributor `Apple', version 10.3.1038
Configured using:
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Configured features:
ACL LIBXML2 ZLIB

Important settings:
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Major mode: ORG

Minor modes in effect:
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Recent input:
<escape> x r e p o r t - e m a c s - b u g <return>

Recent messages:
Loading /Users/HOME/.0.data/.0.emacs/.0.lisp/lawlist-test.el (source)...done
Loading /Users/HOME/.0.data/.0.emacs/.0.lisp/init.el (source)...done
Wrote /Users/HOME/.0.data/.0.emacs/.lock

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