Finishing touches for portability.

* jk/commit-dates-parsing-fix:
  t4212: loosen far-in-future test for AIX
  date: recognize bogus FreeBSD gmtime output

'git p4 rebase' fails with the following message if there is a file
named HEAD in the current directory:

	fatal: ambiguous argument 'HEAD': both revision and filename
	Use '--' to separate paths from revisions, like this:
	'git <command> [<revision>...] -- [<file>...]'

Take the suggestion above and explicitly state that HEAD should be
treated as a revision.
Signed-off-by: NVlad Dogaru <vdogaru@ixiacom.com>
Acked-by: NPete Wyckoff <pw@padd.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Drop NO_PERL_MAKEMAKER from config.mak.uname for the MSVC platform.

MakeMaker is available on Windows Perl implementations and
installs modules to correct location, unlike NO_PERL_MAKEMAKER Makefile.
Signed-off-by: NMarat Radchenko <marat@slonopotamus.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

* maint:
  Start preparing for 1.9.1

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

* jk/mv-submodules-fix:
  mv: prevent mismatched data when ignoring errors.
  builtin/mv: fix out of bounds write

Conflicts:
	t/t7001-mv.sh

* mh/remove-subtree-long-pathname-fix:
  entry.c: fix possible buffer overflow in remove_subtree()
  checkout_entry(): use the strbuf throughout the function

* jk/lib-terminal-lazy:
  t/lib-terminal: make TTY a lazy prerequisite

* nd/index-pack-error-message:
  index-pack: report error using the correct variable

* us/printf-not-echo:
  test-lib.sh: do not "echo" caller-supplied strings
  rebase -i: do not "echo" random user-supplied strings

* rr/doc-merge-strategies:
  Documentation/merge-strategies: avoid hyphenated commands

* jk/shallow-update-fix:
  shallow: verify shallow file after taking lock
  shallow: automatically clean up shallow tempfiles
  shallow: use stat_validity to check for up-to-date file

* jc/stash-pop-not-popped:
  stash pop: mention we did not drop the stash upon failing to apply

* jn/wt-status:
  wt-status: lift the artificual "at least 20 columns" floor
  wt-status: i18n of section labels
  wt-status: extract the code to compute width for labels
  wt-status: make full label string to be subject to l10n

Allow tweaking the maximum length of the delta-chain produced by
"gc --aggressive".

* nd/gc-aggressive:
  environment.c: fix constness for odb_pack_keep()
  gc --aggressive: make --depth configurable

"diff --no-index -Mq a b" fell into an infinite loop.

* jc/fix-diff-no-index-diff-opt-parse:
  diff-no-index: correctly diagnose error return from diff_opt_parse()

* cb/aix:
  tests: don't rely on strerror text when testing rmdir failure
  dir.c: make git_fnmatch() not inline

Protect refs in a hierarchy that can come from more than one remote
hierarcies from incorrect removal by "git fetch --prune".

* cn/fetch-prune-overlapping-destination:
  fetch: handle overlaping refspecs on --prune
  fetch: add a failing test for prunning with overlapping refspecs

Attempts to show where a single-strand-of-pearls break in "git log"
output.

* nd/log-show-linear-break:
  log: add --show-linear-break to help see non-linear history
  object.h: centralize object flag allocation

* ep/shell-command-substitution:
  git-am.sh: use the $(...) construct for command substitution
  check-builtins.sh: use the $(...) construct for command substitution

* ap/remote-hg-skip-null-bookmarks:
  remote-hg: do not fail on invalid bookmarks

Allow the options -i/--regexp-ignore-case, --pickaxe-regex, and -S
to be used together and work as expected to perform a pickaxe
search using case-insensitive regular expression matching.

* rs/pickaxe-i:
  pickaxe: simplify kwset loop in contains()
  pickaxe: call strlen only when necessary in diffcore_pickaxe_count()
  pickaxe: move pickaxe() after pickaxe_match()
  pickaxe: merge diffcore_pickaxe_grep() and diffcore_pickaxe_count() into diffcore_pickaxe()
  pickaxe: honor -i when used with -S and --pickaxe-regex
  t4209: use helper functions to test --author
  t4209: use helper functions to test --grep
  t4209: factor out helper function test_log_icase()
  t4209: factor out helper function test_log()
  t4209: set up expectations up front

As we are not shipping with the submodule change, remove the
entry for it.

This reverts commit 23d25e48, as it is
broken for users who haven't opted into the new feature of checking
out submodule.*.branch with update mode set to checkout.

One of the tests in t4212 checks our behavior when we feed
gmtime a date so far in the future that it gives up and
returns NULL. Some implementations, like AIX, may actually
just provide us a bogus result instead.

It's not worth it for us to come up with heuristics that
guess whether the return value is sensible or not. On good
platforms where gmtime reports the problem to us with NULL,
we will print the epoch value. On bad platforms, we will
print garbage.  But our test should be written for the
lowest common denominator so that it passes everywhere.
Reported-by: NCharles Bailey <cbailey32@bloomberg.net>
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Most gmtime implementations return a NULL value when they
encounter an error (and this behavior is specified by ANSI C
and POSIX).  FreeBSD's implementation, however, will simply
leave the "struct tm" untouched.  Let's also recognize this
and convert it to a NULL (with this patch, t4212 should pass
on FreeBSD).
Reported-by: NRené Scharfe <l.s.r@web.de>
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

This reverts commit 00d4ff1a, reversing
changes made to d3badc6e.

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

* mm/status-porcelain-format-i18n-fix:
  status: disable translation when --porcelain is used

* an/branch-config-message:
  branch.c: install_branch_config: simplify if chain

* jk/tests-cleanup:
  t0001: drop subshells just for "cd"
  t0001: drop useless subshells
  t0001: use test_must_fail
  t0001: use test_config_global
  t0001: use test_path_is_*
  t0001: make symlink reinit test more careful
  t: prefer "git config --file" to GIT_CONFIG
  t: prefer "git config --file" to GIT_CONFIG with test_must_fail
  t: stop using GIT_CONFIG to cross repo boundaries
  t: drop useless sane_unset GIT_* calls
  t/test-lib: drop redundant unset of GIT_CONFIG
  t/Makefile: stop setting GIT_CONFIG

* wt/doc-submodule-name-path-confusion-2:
  doc: submodule.*.branch config is keyed by name

* wt/doc-submodule-name-path-confusion-1:
  doc: submodule.* config are keyed by submodule names

* mr/msvc-link-with-lcurl:
  MSVC: allow linking with the cURL library

Teaches the "rev-parse --parseopt" mechanism used by scripted
Porcelains to parse command line options and give help text how to
supply argv-help (the placeholder string for an option parameter,
e.g. "key-id" in "--gpg-sign=<key-id>").

* ib/rev-parse-parseopt-argh:
  t1502: protect runs of SPs used in the indentation
  rev-parse --parseopt: option argument name hints

* dp/makefile-charset-lib-doc:
  Makefile: describe CHARSET_LIB better

Improves the pattern to match the hunk-header for C/C++.

* js/userdiff-cc:
  userdiff: have 'cpp' hunk header pattern catch more C++ anchor points
  t4018: test cases showing that the cpp pattern misses many anchor points
  t4018: test cases for the built-in cpp pattern
  t4018: reduce test files for pattern compilation tests
  t4018: convert custom pattern test to the new infrastructure
  t4018: convert java pattern test to the new infrastructure
  t4018: convert perl pattern tests to the new infrastructure
  t4018: an infrastructure to test hunk headers
  userdiff: support unsigned and long long suffixes of integer constants
  userdiff: support C++ ->* and .* operators in the word regexp

* dw/doc-status-no-longer-shows-pound-prefix:
  doc: status, remove leftover statement about '#' prefix

* ca/doc-config-third-party:
  config.txt: third-party tools may and do use their own variables