Merge branch 'jc/clone-borrow' into jch

Allow "git clone --reference" to be used more safely.

* jc/clone-borrow:
  clone: --dissociate option to mark that reference is only temporary
Merge branch 'jc/checkout-local-track-report' into jch

The report from "git checkout" on a branch that builds on another
local branch by setting its branch.*.merge to branch name (not a
full refname) incorrectly said that the upstream is gone.

* jc/checkout-local-track-report:
  checkout: report upstream correctly even with loosely defined branch.*.merge
Merge branch 'jc/diff-b-m' into jch

Fix long-standing bug in "diff -B -M" output.

* jc/diff-b-m:
  diff -B -M: fix output for "copy and then rewrite" case
Merge branch 'jc/strbuf-add-lines-avoid-sp-ht-sequence' into jch

The commented output used to blindly add a SP before the payload
line, resulting in "# \t<indented text>\n" when the payload began
with a HT.  Instead, produce "#\t<indented text>\n".

* jc/strbuf-add-lines-avoid-sp-ht-sequence:
  strbuf_add_commented_lines(): avoid SP-HT sequence in commented lines
Merge branch 'jc/merge-bases' into jch

The get_merge_bases*() API was easy to misuse by careless
copy&paste coders, leaving object flags tainted in the commits that
needed to be traversed.

* jc/merge-bases:
  get_merge_bases(): always clean-up object flags
  bisect: clean flags after checking merge bases
Merge branch 'nd/lockfile-absolute' into jch

The lockfile API can get confused which file to clean up when the
process moved the $cwd after creating a lockfile.

* nd/lockfile-absolute:
  lockfile.c: store absolute path
Merge branch 'br/imap-send-verbosity' into jch

* br/imap-send-verbosity:
  imap-send: use parse options API to determine verbosity
Merge branch 'br/imap-send-via-libcurl' into jch

Newer libCurl knows how to talk IMAP; "git imap-send" has been
updated to use this instead of a hand-rolled OpenSSL calls.

* br/imap-send-via-libcurl:
  git-imap-send: use libcurl for implementation
Merge branch 'jk/approxidate-avoid-y-d-m-over-future-dates' into jch

Traditionally we tried to avoid interpreting date strings given by
the user as future dates, e.g. GIT_COMMITTER_DATE=2014-12-10 when
used early November 2014 was taken as "October 12, 2014" because it
is likely that a date in the future, December 10, is a mistake.

Loosen this and do not tiebreak by future-ness of the date when

(1) ISO-like format is used, and
(2) the string can make sense interpreted as both y-m-d and y-d-m.

* jk/approxidate-avoid-y-d-m-over-future-dates:
  approxidate: allow ISO-like dates far in the future
  pass TIME_DATE_NOW to approxidate future-check
Merge branch 'mh/update-ref-verify' into jch

"git update-ref --stdin"'s verify command did not work well when
<oldvalue>, which is documented as optional, was missing.

* mh/update-ref-verify:
  update-ref: fix "verify" command with missing <oldvalue>
  t1400: add some more tests of "update-ref --stdin"'s verify command
Merge branch 'jk/add-i-read-error' into jch

"git add -i" did not notice when the interactive command input
stream went away and kept asking.

* jk/add-i-read-error:
  add--interactive: leave main loop on read error
Merge branch 'pd/completion-filenames-fix' into jch

The top-of-the-file instruction for completion scripts (in contrib/)
did not name the files correctly.

* pd/completion-filenames-fix:
  Update documentation occurrences of filename .sh
Merge branch 'rd/send-email-2047-fix' into jch

"git send-email" did not handle RFC 2047 encoded headers quite
right.

* rd/send-email-2047-fix:
  send-email: handle adjacent RFC 2047-encoded words properly
  send-email: align RFC 2047 decoding more closely with the spec
Merge branch 'lh/send-email-hide-x-mailer' into jch

"git send-email" normally identifies itself via X-Mailer: header
in the message it sends out.  A new command line flag allows the
header to be squelched.

* lh/send-email-hide-x-mailer:
  test/send-email: --[no-]xmailer tests
  send-email: add --[no-]xmailer option
Merge branch 'sb/t5400-remove-unused' into jch

* sb/t5400-remove-unused:
  t5400: remove dead code
Merge branch 'es/squelch-openssl-warnings-on-macosx' into jch

Squelch useless compiler warnings on Mac OS X.

* es/squelch-openssl-warnings-on-macosx:
  git-compat-util: suppress unavoidable Apple-specific deprecation warnings
Merge branch 'po/doc-core-ignorestat' into jch

* po/doc-core-ignorestat:
  doc: core.ignoreStat clarify the --assume-unchanged effect
Merge branch 'sb/dco-indentation-fix' into jch

* sb/dco-indentation-fix:
  Documentation/SubmittingPatches: unify whitespace/tabs for the DCO
Merge branch 'jc/t9001-modernise' into jch

* jc/t9001-modernise:
  t9001: style modernisation phase #5
  t9001: style modernisation phase #4
  t9001: style modernisation phase #3
  t9001: style modernisation phase #2
  t9001: style modernisation phase #1
Merge branch 'bb/update-unicode-table' into jch

Simplify the procedure to generate unicode table.

* bb/update-unicode-table:
  update_unicode.sh: delete the command group
  update_unicode.sh: make the output structure visible
  update_unicode.sh: shorten uniset invocation path
  update_unicode.sh: set UNICODE_DIR only once
  update_unicode.sh: simplify output capture