org-msg-ctrl-c-ctrl-c: support `message-send'

With the universal argument (i.e. C-u C-c C-c), org-msg-ctrl-c-ctrl-c
calls the 'send mua function, defaulting to `message-send' instead of
the 'send-and-exit mua function.

This patch addresses #127

Signed-off-by: Hugo Heagren <[email protected]>

README.org

@@ -23,7 +23,7 @@ The *OrgMsg* mode keys are the usual key combination used in either [[https://or
 - ~C-c C-s~ -- calls ~message-goto-subject~ (same as in [[https://www.gnu.org/software/emacs/manual/html_mono/message.html][Message mode]])
 - ~C-c C-b~ -- calls ~org-msg-goto-body~ (similar to ~message-goto-body~ in [[https://www.gnu.org/software/emacs/manual/html_mono/message.html][Message mode]])
 - ~C-c C-a~ -- calls ~org-msg-attach~, very similar to the ~org-attach~ function.  It lets you add or delete attachment for this email.  Attachment list is stored in the ~:attachment:~ property.
-- ~C-c C-c~ -- calls ~org-ctrl-c-ctrl-c~. *OrgMsg* configures ~org-msg-ctrl-c-ctrl-c~ as a final hook of [[https://orgmode.org/][Org mode]]. When ~org-msg-ctrl-c-ctrl-c~ is called in a *OrgMsg* buffer it generates the MIME message and send it.
+- ~C-c C-c~ -- calls ~org-ctrl-c-ctrl-c~. *OrgMsg* configures ~org-msg-ctrl-c-ctrl-c~ as a final hook of [[https://orgmode.org/][Org mode]]. When ~org-msg-ctrl-c-ctrl-c~ is called in a *OrgMsg* buffer it generates the MIME message, sends it and exits. If the universal argument is supplied, the last step is skipped.
 
 The ~org-msg-mode~ interactive function can be called to enable/disable *OrgMsg*.  By default, once the module is loaded, it is disable.  If you want to reply to an email without making use of *OrgMsg*, you should call that function before you call the reply-to function.
 

org-msg.el

@@ -1254,6 +1254,7 @@ MML tags."
   (unless (org-msg-message-fetch-field "subject")
     (org-msg-post-setup args)))
 
+(defalias 'org-msg-send-notmuch 'notmuch-mua-send)
 (defalias 'org-msg-send-and-exit-notmuch 'notmuch-mua-send-and-exit)
 
 (defun org-msg-sanity-check ()
@@ -1274,10 +1275,13 @@ to proceed?")
 (defun org-msg-ctrl-c-ctrl-c ()
   "Send message like `message-send-and-exit'.
 If the current buffer is OrgMsg buffer and OrgMsg is enabled (see
-`org-msg-toggle'), it calls `message-send-and-exit'."
+`org-msg-toggle'), it calls `message-send-and-exit'. With the
+universal prefix argument, it calls `message-send'."
   (when (eq major-mode 'org-msg-edit-mode)
     (org-msg-sanity-check)
-    (org-msg-mua-call 'send-and-exit 'message-send-and-exit)))
+    (if current-prefix-arg
+	(org-msg-mua-call 'send 'message-send)
+      (org-msg-mua-call 'send-and-exit 'message-send-and-exit))))
 
 (defun org-msg-tab ()
   "Complete names or Org mode visibility cycle.