bug#23936: 25.1.50; shell-command shell-command-on-region doc fix

[Tino Calancha <tino.calancha@gmail.com>]

There is another wrong sentence in the doc strings for 
shell-command[-on-region]

The output buffer is not deleted: the code killing that buffer was 
commented:

;; It is rude to delete a buffer which the command is not using.
;; Don't kill: there might be useful info in the undo-log.

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From 33e7bb2c459ffdf918ccbad4693c641d09349178 Mon Sep 17 00:00:00 2001
From: Tino Calancha <tino.calancha@gmail.com>
Date: Thu, 21 Jul 2016 17:35:17 +0900
Subject: [PATCH] Doc string fixes

* lisp/simple.el (shell-command, shell-command-on-region): These
commands never delete the buffer '*Shell-Command Output*'; update
their doc strings (Bug#23936).
---
  lisp/simple.el | 7 +------
  1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/lisp/simple.el b/lisp/simple.el
index 51c9100..e91b6e0 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -3288,9 +3288,6 @@ shell-command
  in the current buffer\", a message about the error goes at the end
  of the output.

-If there is no output, or if output is inserted in the current buffer,
-then `*Shell Command Output*' is deleted.
-
  If the optional third argument ERROR-BUFFER is non-nil, it is a buffer
  or buffer name to which to direct the command's standard error output.
  If it is nil, error output is mingled with regular output.
@@ -3535,9 +3532,7 @@ shell-command-on-region
  The output is available in that buffer in both cases.

  If there is output and an error, a message about the error
-appears at the end of the output.  If there is no output, or if
-output is inserted in the current buffer, the buffer `*Shell
-Command Output*' is deleted.
+appears at the end of the output.

  Optional fourth arg OUTPUT-BUFFER specifies where to put the
  command's output.  If the value is a buffer or buffer name,
-- 
2.8.1


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