* lisp/emacs-lisp/checkdoc.el (checkdoc-package-keywords-flag): New
  defcustom.
(checkdoc-list-of-strings-p): Add doc.
(checkdoc-current-buffer): When `checkdoc-package-keywords-flag' is
non-nil, call `checkdoc-package-keywords'.
(checkdoc-get-keywords): New defun.
(checkdoc-package-keywords): New command. Warns if the current file
has package.el-style keywords that aren't in `finder-known-keywords'.

* etc/NEWS: Add entry.

* lisp/emacs-lisp/checkdoc.el (checkdoc-error): When
  `checkdoc-diagnostic-buffer' is set to "*warn*", print the warning
  to the standard output.

(bug#20754)

* etc/DEBUG: Improve the section on debugging redisplay issues.
Also other minor copyedits.

Calls like (print FOO) could generate improperly encoded or
hard-to-read output if FOO contains characters outside the system
locale.  Fix this by treating batch stdout and stderr like
interactive standard display, when it comes to transliterating and
encoding characters (Bug#20545).
* doc/emacs/mule.texi (Communication Coding):
* doc/lispref/display.texi (Active Display Table):
* doc/lispref/nonascii.texi (Locales):
* etc/NEWS:
* src/coding.c (syms_of_coding):
* src/dispnew.c (syms_of_display):
Document this.
* src/print.c: Include disptab.h.
(printchar_to_stream): New function, with much of the guts of the
old Fexternal_debugging_output, except this one also uses the
standard display table.
(printchar, strout, Fexternal_debugging_output): Use it.

* startup.el (command-line-1): When Emacs is given a file as an
argument and `initial-buffer-choice' is non-nil, display both the file
and `initial-buffer-choice'.  For more than one file, show
`initial-buffer-choice' and *Buffer List*.  Refactor display-changing
commands out of the command line arg parser.
(initial-buffer-choice): Clarify docstring.