in a transaction by default, instead of emitting where each refs

should point at and leaving the actual update to another command.

* "git blame" learns "--diff-algorithm=<algo>" option.

Performance, Internal Implementation, Development Support etc.

corrected.

(merge 7a03a10a3a jx/repo-struct-utf8width-fix later to maint).

* Yet another corner case fix around renames in the "ort" merge

strategy.

(merge a562d90a35 en/ort-rename-another-fix later to maint).

* Test leakfix.

(merge 14b561e768 jk/test-mktemp-leakfix later to maint).

* Update a version of action used at the GitHub Actrions CI.

(merge cd99203f86 js/ci-github-setup-go-update later to maint).

* The "return errno = EFOO, -1" construct, which is heavily used in

compat/mingw.c and triggers warnings under "-Wcomma", has been

rewritten to avoid the warnings.

(merge af3919816f js/mingw-assign-comma-fix later to maint).

* Makefile based build have recently been updated to build a

libgit.a that also has reftable and xdiff objects; CMake based

build procedure has been updated to match.

(merge b0d5c88cca js/cmake-libgit-fix later to maint).

* Under-allocation fix.

(merge d22a488482 js/wincred-get-credential-alloc-fix later to maint).

* "git worktree list" attempts to show paths to worktrees while

aligning them, but miscounted display columns for the paths when

non-ASCII characters were involved, which has been corrected.

(merge 08dfa59835 pw/worktree-list-display-width-fix later to maint).

* "Windows+meson" job at the GitHub Actions CI was hard to debug, as

it did not show and save failed test artifacts, which has been

corrected.

(merge 17bd1108ea jk/ci-windows-meson-test-fix later to maint).

* Emulation code clean-up.

(merge 2367c6bcd6 gf/win32-pthread-cond-wait-err later to maint).

* Other code cleanup, docfix, build fix, etc.

(merge 46207a54cc qj/doc-http-bad-want-response later to maint).

(merge df90eccd93 kh/doc-commit-extra-references later to maint).

(merge f18aa68861 rs/xmkstemp-simplify later to maint).