The build procedure has been improved to allow building and testing
Git with address sanitizer more easily.

* jk/build-with-asan:
  Makefile: disable unaligned loads with UBSan
  Makefile: turn off -fomit-frame-pointer with sanitizers
  Makefile: add helper for compiling with -fsanitize
  test-lib: turn on ASan abort_on_error by default
  test-lib: set ASAN_OPTIONS variable before we run git

Doc update.

* ks/fix-rebase-doc-picture:
  doc: correct a mistake in an illustration

Code cleanup.

* rs/wt-status-cleanup:
  wt-status: use separate variable for result of shorten_unambiguous_ref

The rewrite of "git branch --list" using for-each-ref's internals
that happened in v2.13 regressed its handling of color.branch.local;
this has been fixed.

* kn/ref-filter-branch-list:
  ref-filter.c: drop return from void function
  branch: set remote color in ref-filter branch immediately
  branch: use BRANCH_COLOR_LOCAL in ref-filter format
  branch: only perform HEAD check for local branches

Code cleanup.

* rs/use-div-round-up:
  use DIV_ROUND_UP

Code cleanup.

* rs/urlmatch-cleanup:
  urlmatch: use hex2chr() in append_normalized_escapes()

Code cleanup.

* rs/apply-avoid-over-reading:
  apply: use strcmp(3) for comparing strings in gitdiff_verify_name()

Convert code that divides and rounds up to use DIV_ROUND_UP to make the
intent clearer and reduce the number of magic constants.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

* master:
  Prepare for 2.13.3
  Sixteenth batch for 2.14
  l10n: de.po: fix typo

Code clean-up.

* sb/merge-recursive-code-cleanup:
  merge-recursive: use DIFF_XDL_SET macro

Code cleanup.

* jc/utf8-fprintf:
  submodule--helper: do not call utf8_fprintf() unnecessarily

Test fix.

* js/fsck-name-object:
  t1450: use egrep for regexp "alternation"

A few tests that tried to verify the contents of push certificates
did not use 'git rev-parse' to formulate the line to look for in
the certificate correctly.

* js/t5534-rev-parse-gives-multi-line-output-fix:
  t5534: fix misleading grep invocation

Update the sha1dc again to fix portability glitches.

* ab/sha1dc-maint:
  sha1dc: update from upstream

The Makefile rule in contrib/subtree for building documentation
learned to honour USE_ASCIIDOCTOR just like the main documentation
set does.

* aw/contrib-subtree-doc-asciidoctor:
  subtree: honour USE_ASCIIDOCTOR when set

The split index code did not honor core.sharedrepository setting
correctly.

* cc/shared-index-permfix:
  t1700: make sure split-index respects core.sharedrepository
  t1301: move modebits() to test-lib-functions.sh
  read-cache: use shared perms when writing shared index

Doc update.

* ah/doc-pretty-color-auto-prefix:
  doc: clarify syntax for %C(auto,...) in pretty formats

Message update.

* mb/reword-autocomplete-message:
  auto-correct: tweak phrasing

Cosmetic update to a test.

* ks/t7508-indent-fix:
  t7508: fix a broken indentation

Test clean-up.

* sb/t4005-modernize:
  t4005: modernize style and drop hard coded sha1

Tighten error checks for invalid "git apply" input.

* rs/apply-validate-input:
  apply: check git diffs for mutually exclusive header lines
  apply: check git diffs for invalid file modes
  apply: check git diffs for missing old filenames

An unaligned 32-bit access in pack-bitmap code ahs been corrected.

* jc/pack-bitmap-unaligned:
  pack-bitmap: don't perform unaligned memory access

Fix a recent regression to "git rebase -i" and add tests that would
have caught it and others.

* pw/rebase-i-regression-fix-tests:
  t3420: fix under GETTEXT_POISON build
  rebase: add more regression tests for console output
  rebase: add regression tests for console output
  rebase -i: add test for reflog message
  sequencer: print autostash messages to stderr

"git add -p" were updated in 2.12 timeframe to cope with custom
core.commentchar but the implementation was buggy and a
metacharacter like $ and * did not work.

* jk/add-p-commentchar-fix:
  add--interactive: quote commentChar regex
  add--interactive: handle EOF in prompt_yesno

The code to pick up and execute command alias definition from the
configuration used to switch to the top of the working tree and
then come back when the expanded alias was executed, which was
unnecessarilyl complex.  Attempt to simplify the logic by using the
early-config mechanism that does not chdir around.

* js/alias-early-config:
  alias: use the early config machinery to expand aliases
  t7006: demonstrate a problem with aliases in subdirectories
  t1308: relax the test verifying that empty alias values are disallowed
  help: use early config when autocorrecting aliases
  config: report correct line number upon error
  discover_git_directory(): avoid setting invalid git_dir

The pretty-format specifiers like '%h', '%t', etc. had an
optimization that no longer works correctly.  In preparation/hope
of getting it correctly implemented, first discard the optimization
that is broken.

* rs/pretty-add-again:
  pretty: recalculate duplicate short hashes

An example in documentation that does not work in multi worktree
configuration has been corrected.

* ah/doc-gitattributes-empty-index:
  doc: do not use `rm .git/index` when normalizing line endings

"git mergetool" learned to work around a wrapper MacOS X adds
around underlying meld.

* da/mergetools-meld-output-opt-on-macos:
  mergetools/meld: improve compatibiilty with Meld on macOS X

The 'diff-highlight' program (in contrib/) has been restructured
for easier reuse by an external project 'diff-so-fancy'.

* jk/diff-highlight-module:
  diff-highlight: split code into module

Signed-off-by: Junio C Hamano <gitster@pobox.com>

After "git branch --move" of the currently checked out branch, the
code to walk the reflog of HEAD via "log -g" and friends
incorrectly stopped at the reflog entry that records the renaming
of the branch.

* jk/reflog-walk-maint:
  reflog-walk: include all fields when freeing complete_reflogs
  reflog-walk: don't free reflogs added to cache
  reflog-walk: duplicate strings in complete_reflogs list
  reflog-walk: skip over double-null oid due to HEAD rename

Update the character width tables.

* bb/unicode-10.0:
  unicode: update the width tables to Unicode 10

Typofix.

* ks/typofix-commit-c-comment:
  builtin/commit.c: fix a typo in the comment

Minor code cleanup.

* ab/wildmatch:
  wildmatch: remove unused wildopts parameter

The "collission-detecting" implementation of SHA-1 hash we borrowed
from is replaced by directly binding the upstream project as our
submodule.  Glitches on minority platforms are still being worked out.

* ab/sha1dc:
  sha1collisiondetection: automatically enable when submodule is populated
  sha1dc: optionally use sha1collisiondetection as a submodule

Code cleanup.

* rs/free-and-null:
  coccinelle: polish FREE_AND_NULL rules

Code refactoring.

* pw/unquote-path-in-git-pm:
  t9700: add tests for Git::unquote_path()
  Git::unquote_path(): throw an exception on bad path
  Git::unquote_path(): handle '\a'
  add -i: move unquote_path() to Git.pm

An old message shown in the commit log template was removed, as it
has outlived its usefulness.

* ks/commit-assuming-only-warning-removal:
  commit-template: distinguish status information unconditionally
  commit-template: remove outdated notice about explicit paths