* etc/NEWS: Fix capitalization and markup.
* lisp/emacs-lisp/ert.el (ert--should-error-handle-error): Prefer
any over cl-some where either will do.
* lisp/epa-file.el (epa-file--find-file-not-found-function):
Reindent.
(epa-file--error-add-context): Use correct variables.  Add
docstring.
* lisp/ffap.el (ffap-machine-p):
* lisp/gnus/nnmaildir.el (nnmaildir--emlink-p): Prefer
string-equal-ignore-case over case fiddling.
* lisp/gnus/gnus-search.el (gnus-search-run-query): Fix typo in
error re-signaling.
* lisp/ibuffer.el (ibuffer-confirm-operation-on): Prefer string
search over regexp matching where either will do.
* test/lisp/vc/vc-tests/vc-tests.el
(vc-test--run-maybe-unsupported-function): Pacify unused
condition-case error variable warnings (bug#72212).

* test/lisp/vc/vc-tests/vc-tests.el
(vc-test--run-maybe-unsupported-function): Remove dummy branch in
`condition-case`.
* test/lisp/arc-mode-tests.el (define-arc-mode-test-on-type):
Use `error-slot-value`.

* test/src/process-tests.el (process-tests--ignore-EMFILE):
* test/src/filelock-tests.el (filelock-tests-unlock-spoiled)
(filelock-tests-kill-buffer-spoiled):
* test/lisp/vc/vc-git-tests.el (vc-git-test--run):
* test/lisp/proced-tests.el (proced--assert-process-valid-cpu-refinement):
* test/lisp/emacs-lisp/pp-tests.el (pp-tests--sanity):
* test/lisp/emacs-lisp/edebug-tests.el (edebug-tests-with-normal-env)
(edebug-tests-post-command):
* test/lisp/autorevert-tests.el (auto-revert--deftest-remote):
* test/infra/android/test-controller.el (ats-connect):

This reverts commit feac53141577161c32a7a6dfe75399a5ae98a7c1.

This patch has deactivated 253 test cases without a sufficient reasoning.
Instead it speaks about a shotgun in its commite message.

The patch is reverted because

- It hasn't been discussed on emacs-devel. It should have, because it is
  a serious change in our infrastructure (new official tag :nobatch). Any
  documentation of this change, for example in test/README, is missing.

- The proper way to deactivate such tests would have been

  (skip-when noninteractive)

  Even better to skip for the respective reasons.

- There is no fault report. There is no information about how these tests
  have failed. Since it hasn't been a problem so far for us, nobody will
  work on a fix forever.

There were a bunch of tests that were breaking make check and should
never be run in batch mode, because they do things like assuming there
is a controlling tty or assuming we can access network services when
we can't (e/g. in a CI/CD environment). I have shotgunned this
problem by tagging all the failing tests with :nobatch and then
changing the default and expensive selectors so make check won't barf
all over its shoes.

As many of these :nobatch should be individually removed as possible, after
upgrading the test harness to mock the environmental stuff they need.
Investigate these failures with "make check-nobatch".

* test/lisp/vc/vc-git-tests.el (vc-git-test--with-repo): Use
example.com, domain following RFC 2606.
* test/lisp/vc/vc-tests/vc-tests.el
(vc-test--with-author-identity): Use example.com, domain
following RFC 2606.

* lisp/vc/diff-mode.el (diff-file-kill): New optional DELETE
parameter.
(diff-kill-creations-deletions):
* lisp/vc/vc.el (vc--fileset-by-state): New functions.
(diff-kill-creations-deletions, diff-filename-drop-dir)
(diff-hunk-file-names, diff-file-next, diff-hunk-header-re)
(vc-dir-resynch-file): Declare.
(vc--apply-to-other-working-tree): Handle copying and moving
files in the added, removed, missing and unregistered states.
* test/lisp/vc/vc-tests/vc-tests.el
(vc-test--apply-to-other-working-tree): New test.

* test/lisp/vc/vc-tests/vc-tests.el (vc-test--with-temp-change):
Use write-region (bug#79657).