Log Message:
git: updated to 2.43.2

Git 2.43.2 Release Notes
========================

Relative to Git 2.43.1, this release has two important fixes to allow
"git imap-send" to be built with NO_CURL defined, and to restore the
forced flushing behaviour when GIT_FLUSH=1 is set.  It also contains
other, unexciting, fixes that have already been merged to the 'master'
branch of the development towards the next major release.

Fixes since Git 2.43.1
----------------------

 * Update to a new feature recently added, "git show-ref --exists".

 * Rename detection logic ignored the final line of a file if it is an
   incomplete line.

 * "git diff --no-rename A B" did not disable rename detection but did
   not trigger an error from the command line parser.

 * "git diff --no-index file1 file2" segfaulted while invoking the
   external diff driver, which has been corrected.

 * Rewrite //-comments to /* comments */ in files whose comments
   prevalently use the latter.

 * A failed "git tag -s" did not necessarily result in an error
   depending on the crypto backend, which has been corrected.

 * "git stash" sometimes was silent even when it failed due to
   unwritable index file, which has been corrected.

 * Recent conversion to allow more than 0/1 in GIT_FLUSH broke the
   mechanism by flipping what yes/no means by mistake, which has been
   corrected.

Also contains documentation updates, code clean-ups and minor fixups.