merge(third_party/git): Merge squashed git subtree at v2.23.0

Merge commit '1b593e1ea4' as 'third_party/git'
This commit is contained in:
Vincent Ambo 2020-01-11 23:36:56 +00:00
commit 7ef0d62730
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Git 1.8.1.2 Release Notes
=========================
Fixes since v1.8.1.1
--------------------
* An element on GIT_CEILING_DIRECTORIES list that does not name the
real path to a directory (i.e. a symbolic link) could have caused
the GIT_DIR discovery logic to escape the ceiling.
* Command line completion for "tcsh" emitted an unwanted space
after completing a single directory name.
* Command line completion leaked an unnecessary error message while
looking for possible matches with paths in <tree-ish>.
* "git archive" did not record uncompressed size in the header when
streaming a zip archive, which confused some implementations of unzip.
* When users spelled "cc:" in lowercase in the fake "header" in the
trailer part, "git send-email" failed to pick up the addresses from
there. As e-mail headers field names are case insensitive, this
script should follow suit and treat "cc:" and "Cc:" the same way.
Also contains various documentation fixes.