* minor / cosmetic

emacs/mu4e-hdrs.el

@@ -355,6 +355,7 @@ after the end of the search results."
     major-mode 'mu4e-hdrs-mode
     mode-name "mm: message headers"
     truncate-lines t
+    buffer-undo-list t ;; don't record undo information
     buffer-read-only t
     overwrite-mode 'overwrite-mode-binary)
 

emacs/mu4e-proc.el

@@ -137,6 +137,7 @@ process."
     ;; register a function for (:info ...) sexps
     (setq mu4e-proc-info-func 'mu4e-proc-info-handler)
     (when mu4e-mu-proc
+      (set-process-query-on-exit-flag mu4e-mu-proc nil)
       (set-process-coding-system mu4e-mu-proc 'binary 'utf-8-unix)
       (set-process-filter mu4e-mu-proc 'mu4e-proc-filter)
       (set-process-sentinel mu4e-mu-proc 'mu4e-proc-sentinel))))

emacs/mu4e.texi

@@ -887,6 +887,9 @@ can save attachments, and then re-attach them by hand.
 conveniently read encrypted mail or check signatures (it should be possible
 with e.g. EPA though, @inforef{Top, EasyPG Assistant, epa}.) For outgoing
 messages, it should work though, using the built-in mechanisms.
+@item @emph{One cannot influence the sorting of messages}. Messages are sorted
+according to thread, then descending by date. It would be nice if it could be
+sorted in other ways as well.
 @item @emph{Difficulties with attachments in messages with complex
 MIME-hierarchy.} While dealing with attachments usually works fine, we have
 found some problems with specific mails. This is an issue in @t{mu}, and it is