Fix handling of require-final-newline in after-find-file.

* files.el (after-find-file): Don't fail on a read-only buffer if
require-final-newline is `visit' or `visit-save'.

Fixes: debbugs:11156

2 files changed, 4 insertions, 1 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index d7004237adf..db3a3f5d044 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,8 @@
 2012-09-07  Chong Yidong  <cyd@gnu.org>
 
+        * files.el (after-find-file): Don't fail on a read-only buffer if
+        require-final-newline is `visit' or `visit-save' (Bug#11156).
+
         * subr.el (read-char-choice): Allow quitting via ESC ESC.
 
         * userlock.el (ask-user-about-supersession-threat): Use
diff --git a/lisp/files.el b/lisp/files.el
index 6528632c841..fb4549f0399 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -2145,7 +2145,7 @@ unless NOMODES is non-nil."
          (not buffer-read-only)
          (save-excursion
            (goto-char (point-max))
-           (insert "\n")))
+           (ignore-errors (insert "\n"))))
     (when (and buffer-read-only
                view-read-only
                (not (eq (get major-mode 'mode-class) 'special)))