* simple.el (shell-command-on-region): Handle errors and signals
from shell command execution.
(display-message-or-buffer): Fix last change.
+ (shell-command-default-error-buffer): Doc fix.
* dired.el (dired-view-file): Quote file name for
dired-run-shell-command.
(defvar shell-command-default-error-buffer nil
"*Buffer name for `shell-command' and `shell-command-on-region' error output.
-This buffer is used when `shell-command' or 'shell-command-on-region'
+This buffer is used when `shell-command' or `shell-command-on-region'
is run interactively. A value of nil means that output to stderr and
stdout will be intermixed in the output stream.")