bug#22648: 25.1.50; gnus, header coding

[Frank Haun]

Writing a message with Unicode Chars in the header is broken.

Example:

| Subject: gnus latest, gr?FFC3?FFBCne B?FFC3?FFA4ume, ignore

becomes:

| Subject: gnus latest, \1 ignore

Best regards, Frank



In GNU Emacs 25.1.50.2 (armv7l-unknown-linux-gnueabihf, X toolkit, Xaw3d scroll 
bars)
 of 2016-02-12 built on m7008
Repository revision: 675787bcd3b666fe5dd19e9eeba6ddd5fc5df0d5
Windowing system distributor 'The X.Org Foundation', version 11.0.11702000
System Description:     Raspbian GNU/Linux 8.0 (jessie)

Configured using:
 'configure --prefix=/home/fhaun/opt/emacs-master --with-xft
 --with-x-toolkit=lucid'

Configured features:
XAW3D XPM JPEG TIFF GIF PNG SOUND GSETTINGS NOTIFY LIBXML2 FREETYPE XFT
ZLIB TOOLKIT_SCROLL_BARS LUCID X11

Important settings:
  value of $LANG: de_DE.UTF-8
  locale-coding-system: utf-8-unix

Major mode: ?FFCE?FFBB

Minor modes in effect:
  winner-mode: t
  autopair-global-mode: t
  autopair-mode: t
  show-paren-mode: t
  global-evil-surround-mode: t
  evil-surround-mode: t
  evil-snipe-override-local-mode: t
  evil-snipe-local-mode: t
  evil-snipe-override-mode: t
  evil-snipe-mode: t
  evil-leader-mode: t
  evil-mode: t
  global-undo-tree-mode: t
  undo-tree-mode: t
  evil-local-mode: t
  override-global-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
evil-line-move: End of buffer
Mark set
next-line: End of buffer
Mark set [2 times]
Sending...
Mark set [2 times]
Sending news via reader.albasani.net using nntp...
Mark set
Wrote /home/fhaun/Mail/news-send-2016/141
Sending...done

Load-path shadows:
None found.

Features:
(shadow emacsbug sendmail shr dom subr-x browse-url canlock pp
descr-text flyspell ispell timezone nnir utf-7 sort gnus-cite flow-fill
mm-archive mail-extr gnus-bcklg qp gnus-async gnus-ml disp-table hl-line
nndraft nnmh gnus-agent gnus-srvr gnus-score score-mode nnvirtual
gnus-msg gnus-art mm-uu mml2015 mm-view mml-smime smime dig mailcap nnml
network-stream puny nsm starttls nnfolder gnus-cache gnus-sum nnnil nntp
gnus-topic gnus-group gnus-undo gnus-start gnus-cloud nnimap nnmail
mail-source tls gnutls utf7 netrc nnoo parse-time gnus-spec gnus-int
gnus-range message rfc822 mml mml-sec epa derived epg mm-decode
mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
gnus-win gnus nnheader wid-edit smart-mode-line rich-minority goto-addr
org-element org-rmail org-mhe org-irc org-info org-gnus org-docview
doc-view jka-compr image-mode dired dired-loaddefs org-bibtex bibtex
org-bbdb org-w3m org org-macro org-footnote org-pcomplete pcomplete
org-list org-faces org-entities noutline outline org-version
ob-emacs-lisp ob ob-tangle ob-ref ob-lob ob-table ob-exp org-src ob-keys
ob-comint comint ansi-color ob-core ob-eval org-compat org-macs
org-loaddefs format-spec find-func cal-menu calendar cal-loaddefs winner
generic-x ido seq yasnippet cl autopair paren highlight-symbol iedit
iedit-lib company evil-surround evil-snipe evil-leader evil
evil-integration undo-tree diff evil-maps evil-commands
evil-command-window evil-types evil-search evil-ex evil-macros
evil-repeat evil-states evil-core advice evil-common windmove thingatpt
rect evil-digraphs evil-vars ring edmacro kmacro use-package diminish
bind-key easy-mmode finder-inf info package epg-config url-handlers
url-parse auth-source cl-seq eieio byte-opt bytecomp byte-compile
cl-extra help-mode easymenu cconv eieio-core cl-macs gv eieio-loaddefs
cl-loaddefs pcase cl-lib gnus-util rmail rmail-loaddefs rfc2047 rfc2045
ietf-drums mail-utils mm-util mail-prsvr password-cache url-vars
time-date mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel x-win term/common-win x-dnd tool-bar dnd fontset
image regexp-opt fringe tabulated-list newcomment elisp-mode lisp-mode
prog-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cl-generic cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese charscript case-table epa-hook
jka-cmpr-hook help simple abbrev obarray minibuffer cl-preloaded nadvice
loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote inotify dynamic-setting
system-font-setting font-render-setting x-toolkit x multi-tty
make-network-process emacs)

Memory information:
((conses 8 373084 83935)
 (symbols 24 57397 0)
 (miscs 20 881 1246)
 (strings 16 115580 12436)
 (string-bytes 1 3401816)
 (vectors 8 50281)
 (vector-slots 4 1717804 57230)
 (floats 8 551 321)
 (intervals 28 1323 2493)
 (buffers 520 49)
 (heap 1024 46208 2345))