master 2ece0f8: Allow shell PROMPT strings to have ANSI codes

[Lars Ingebrigtsen]

branch: master
commit 2ece0f8d3c741bf27c6e035c5fcd2d60f164ab51
Author: Lars Ingebrigtsen <larsi@gnus.org>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Allow shell PROMPT strings to have ANSI codes
    
    * lisp/comint.el (comint-output-filter): Don't overwrite ANSI
    codes from the prompt command (bug#11883).
---
 lisp/comint.el | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lisp/comint.el b/lisp/comint.el
index 7801261..40f58f2 100644
--- a/lisp/comint.el
+++ b/lisp/comint.el
@@ -2157,9 +2157,9 @@ Make backspaces delete the previous character."
                 'comint-highlight-prompt))
              (setq comint-last-prompt
                    (cons (copy-marker prompt-start) (point-marker)))
-             (font-lock-prepend-text-property prompt-start (point)
-                                              'font-lock-face
-                                              'comint-highlight-prompt)
+             (font-lock-append-text-property prompt-start (point)
+                                             'font-lock-face
+                                             'comint-highlight-prompt)
              (add-text-properties prompt-start (point)
                                   `(rear-nonsticky
                                     ,comint--prompt-rear-nonsticky)))