Ref: http://lists.gnu.org/archive/html/emacs-devel/2010-02/msg00135.html
* lisp/simple.el (messages-buffer-mode): New major mode.
(messages-buffer): New function.
* lisp/startup.el (normal-top-level): Switch mode of *Messages* buffer.
* src/xdisp.c (message_dolog): If we create *Messages*,
switch it to messages-buffer-mode.
* lisp/emacs-lisp/ert.el (ert--force-message-log-buffer-truncation)
(ert-run-test): Use `message-buffer' function.
(ert--force-message-log-buffer-truncation): Ignore read-only.
* lisp/help.el (view-echo-area-messages): Use `message-buffer' function.
* lisp/mail/emacsbug.el (report-emacs-bug): Use `message-buffer' function.
* lisp/gnus/gnus-util.el (gnus-message-with-timestamp-1):
Use `message-buffer' function if available. Ignore read-only.
* etc/NEWS: Mention this.
* lisp/info.el (info-emacs-bug): New command.
* lisp/menu-bar.el (menu-bar-help-menu): Add "How to Report a Bug" to Help.
* lisp/mail/emacsbug.el (report-emacs-bug): Replace with info-emacs-bug.
* lisp/version.el (emacs-bzr-get-version): New function.
* lisp/loadup.el (emacs-bzr-version): Set it.
* lisp/mail/emacsbug.el (report-emacs-bug): Include bzr version.
* etc/NEWS: Mention this, though it is not really relevant to releases.
Insert template for 24.2 release.
Fixes: debbugs:8054
* mail/emacsbug.el (report-emacs-bug-hook): Fix up thinko in
previous patch: Check `message-send-mail-function', and not the
default function.
Fixes: debbugs:10897
* mail/emacsbug.el (report-emacs-bug-hook): Look at the value of
`message-default-send-mail-function' and not `send-mail-function'
when doing the prompting for `sendmail-query-once' before sending
in Message buffers.
Fixes: debbugs:10897
* gnus/message.el (message-default-send-mail-function): Made into own
function for reuse by emacsbug.el.
* mail/emacsbug.el (report-emacs-bug-hook): Query the user first
about SMTP before checking the From header.
* mail/sendmail.el (sendmail-query-user-about-smtp): Refacored out
into own function for reuse by emacsbug.el.
* mail/emacsbug.el (report-emacs-bug-insert-to-mailer): Check
report-emacs-bug-can-use-osx-open and use that if t.
(report-emacs-bug-can-use-osx-open): New function.
(report-emacs-bug): Rename can-xdg-email to can-insert-mail.
Check report-emacs-bug-can-use-osx-open also for can-insert-mail.
(report-emacs-bug-parse-query-results)
(report-emacs-bug-create-existing-bugs-buffer): Pass through
keywords used for querying the bug database to show them in the
existing bugs buffer.
