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Run "TZ=UTC0 admin/update-copyright $(git ls-files)".

Doing so breaks icomplete-forward-completions and
icomplete-backward-completions.

* lisp/icomplete.el (icomplete--sorted-completions): Don't always
resort.

(cherry picked from commit 639fb50e)

Besides the adverse effect of delaying completions, it tripped up the
useful logic of icomplete-force-complete-and-exit in the case where a
default was available, but no completions calculated yet.

* lisp/icomplete.el (icomplete-fido-ret): Don't force calculation
of completions.

(cherry picked from commit 13778aa5)

* lisp/icomplete.el (icomplete--sorted-completions): Use
completion--cache-all-sorted-completions.

(cherry picked from commit 83587bb6)

This moves the logic from the series of commits starting in the commit named:

  Improve sorting of flex completion style with non-nil minibuffer-default

to lisp/icomplete.el, so far the only confirmed beneficiary of that
functionality.

* lisp/icomplete.el (icomplete--sorted-completions): Consider
minibuffer-default here.

* lisp/minibuffer.el (completion--flex-adjust-metadata): Simplify.

(cherry picked from commit 0d2a711d)

Notably C-x d (M-x dired) and C-x v d (M-x vc-dir) behaved quite
differently, having regular files as the default instead of ido's
usual "./".

* lisp/icomplete.el (icomplete--sorted-completions): New helper.
(icomplete-completions): Use it.

(cherry picked from commit ee914051)

* lisp/icomplete.el (icomplete-fido-kill)
(icomplete-fido-delete-char, icomplete-fido-ret)
(icomplete-fido-backward-updir, icomplete-exhibit): Use
icomplete--category.
(icomplete--category): New helper.

(cherry picked from commit 24a1f520)

* lisp/minibuffer.el (completion--flex-adjust-metadata): Adjust
case when minibuffer-default is non-nil.

(cherry picked from commit 9c912049)

* test/lisp/minibuffer-tests.el (completion-table-test-quoting):
Set default-directory.

* test/lisp/comint-tests.el (comint-test-no-password-function)
(comint-test-password-function-with-value)
(comint-test-password-function-with-nil):
Call accept-process-output as many times as needed, with a slightly
more generous timeout (100 ms), after sending the Password: prompt to
the process, since there must be time for some back-and-forth
communication.  Also clear the process-query-on-exit flag, since it
doesn't go well with noninteractive tests.

This makes sure an entry for a long file name will not
accidentally appear as a directory, and thus its size will be
disregarded, causing corrupted file headers for all the subsequent
entries.  The original problem happened because the long file name
truncated to 99 bytes happened to end in a slash, which tar-mode
takes to be the indication of a directory.
* lisp/tar-mode.el (tar-header-block-tokenize): Accept an
additional argument DISABLE-SLASH; if non-nil, don't set the
link-type field of the descriptor to 5 (meaning a directory) just
because the name ends in a slash.  Use this argument when calling
itself recursively, to read the entry of the file with a long
name.  Set the link-type to 5 if the long name ends in a slash.
(Bug#38777)

* src/keyboard.c (read_char, command_loop_1): Resize the
mini-window after clearing the echo area while minibuffer is
active.  (Bug#38645)

* src/window.c (grow_mini_window): Fix resizing of mini-window
when the echo area is cleared, and the caller asks for the
mini-window to have zero lines.  (Bug#38791)

* doc/lispref/customize.texi (Variable Definitions): Fix xref.
* doc/lispref/internals.texi (Writing Emacs Primitives)
(Module Values): Follow xref with comma.

* src/dispextern.h (FACE_COLOR_TO_PIXEL): Only use
ns_color_index_to_rgba when we're running under the NS gui
(Bug#38564).

This reverts commit ea84a95b.

* etc/NEWS: Announce change to matching color fonts when using XFT.

* src/ftfont.c (ftfont_list) [HAVE_XFT && FC_COLOR]: Query for the
color attribute of the matched font, and skip it if it is not
FcFalse (Bug#37786).

* lisp/emacs-lisp/cl-extra.el (cl-random):
Perform the modulo 2**23 operation before updating the state instead
of after.  The result is always the same, but it prevents the state
from growing into arbitrary large bignums.

Patch from Christopher Wellons.

* doc/misc/trampver.texi:
* lisp/net/trampver.el: Change version to "2.4.3".

* lisp/net/tramp.el: Bump version.
(tramp-handle-shell-command): The temp file for error-buffer is remote.

* test/lisp/net/tramp-tests.el (tramp-test30-make-process):
Simplify buffer generation.
(tramp-test32-shell-command): Extend test.

* lisp/progmodes/project.el (project-files):
Remove (require 'xref).
(project--files-in-directory): Add it here instead.
(project-find-regexp, project-or-external-find-regexp): And here.
For 'xref--show-xrefs'.

* lisp/progmodes/xref.el (xref-matches-in-files): Extract from
project--find-regexp-in-files.

* lisp/dired-aux.el (dired-do-find-regexp): Also use it here.

* lisp/progmodes/xref.el (xref-references-in-directory): Rename
from xref-collect-references.  Update the sole caller.
(xref-matches-in-directory): Rename from xref-collect-matches.
Update all callers (all of them are in the /tests/ dir).

* test/lisp/progmodes/xref-tests.el (xref-tests-data-dir):
Don't use the EMACS_TEST_DIRECTORY env var. It doesn't work when
running interactively.

* lisp/progmodes/xref.el (xref-collect-matches)
(xref-collect-references): Improve docstrings.

* src/xdisp.c (expose_area): When the face extends to the end of the
line draw text from the correct x coordinate.

* lisp/progmodes/xref.el (xref-collect-matches): Don't require
semantic/fw, we haven't been using semantic-find-file-noselect
here for a while.

* lisp/progmodes/xref.el (xref--last-file-buffer):
Rename from xref--last-visiting-buffer.  Update users.
(xref--find-file-buffer): Rename from xref--find-buffer-visiting
to match the standard function that gets called inside.  Ditto.

* etc/NEWS: Rearrange and mark entries whether documented or not.

* doc/lispref/streams.texi (Output Variables): Document the new
default of 'print-quoted'.
* doc/lispref/keymaps.texi (Functions for Key Lookup): Document
that KEYMAP arg to 'lookup-key' can also be a list.
* doc/lispref/customize.texi (Variable Definitions): Document the
:local keyword of 'defcustom'.
* doc/lispref/numbers.texi (Float Basics): Document changes in
'logb'.
* doc/lispref/hooks.texi (Standard Hooks): Document
'comint-password-function'.

* doc/emacs/display.texi (Text Scale): Document text-size
adjustment using the mouse wheel.
* doc/emacs/frames.texi (Mouse Commands): Document image scaling
with the mouse wheel.
* doc/emacs/windows.texi (Window Convenience): Document
'global-tab-line-mode'.
* doc/emacs/search.texi (Repeat Isearch, Symbol Search)
(Isearch Yank): Document the new support for numeric arguments in
Isearch commands.
(Special Isearch): Document 'M-s M->' and 'M-s M-<'.
(Search Customizations): Document 'isearch-lazy-count'.  Improve
indexing.
(Not Exiting Isearch): Document the new value of
'isearch-allow-scroll'.
* doc/emacs/maintaining.texi (Xref Commands): Document the new 'g'
key binding.
* doc/emacs/package.texi (Package Installation): Document changes
in 'package-check-signature'.
* doc/emacs/maintaining.texi (VC Change Log): Document
'vc-log-search'.
* doc/emacs/dired.texi (Operating on Files): Document
'dired-vc-rename'.

* lisp/net/netrc.el (netrc-parse): Fix placement of interactive
spec (bug#38773).

* doc/lispref/functions.texi (Obsolete Functions): Make
documentation of functions that obsolete symbols match the
advertised calling conventions.

* lisp/emacs-lisp/byte-run.el (define-obsolete-function-alias)
(define-obsolete-variable-alias, define-obsolete-face-alias):
State in the doc strings that WHEN is a mandatory argument, to be
consistent with the advertised calling convention.  (Bug#38675)

* lisp/gnus/gnus-start.el (gnus-group-change-level): Fix previous
patch that made info nil when adding new groups (thereby making
gnus-newsrc-alist invalid).

* lisp/progmodes/xref.el (xref--find-buffer-visiting):
Speed up by using get-file-buffer.
(xref--collect-matches): Remove the condition on remote-id.
(https://lists.gnu.org/archive/html/emacs-devel/2019-12/msg00753.html)

* lisp/progmodes/project.el (project-try-vc): Do not treat a Git
submodule as a project root, go up to the parent repo.
(project--git-submodules): New function.
(project--vc-list-files): Use it.  Recurse into submodules.

* doc/emacs/buffers.texi (Buffers): Say that buffers are killed
when no longer needed.  Suggested by Jean-Christophe Helary
<jean.christophe.helary@traduction-libre.org>.

* lisp/progmodes/xref.el (xref--collect-matches):
Don't call find-buffer-visiting on remote file names, it's pretty
slow (bug#34343).