We already do so for --window=<n> and --depth=<n>; this will help
when the user wants to force --threads=1 for reproducible testing
without getting affected by racing multiple threads.

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

Doc update.

* km/config-grammofix:
  doc/config: grammar fixes for core.{editor,commentChar}

A test retitling.

* sb/t3600-rephrase:
  t3600: rename test to describe its functionality

A test fix.

* sb/submodule-update-initial-runs-custom-script:
  t7406: correct test case for submodule-update initial population

A test fix.

* jk/quote-env-path-list-component:
  t5615: fix a here-doc syntax error

Code clean-up.

* rs/update-hook-optim:
  receive-pack: simplify run_update_post_hook()

Code clean-up.

* rs/shortlog-cleanup:
  shortlog: don't set after_subject to an empty string

Code clean-up.

* rs/path-name-safety-cleanup:
  revision: remove declaration of path_name()

Code clean-up.

* rs/http-push-cleanup:
  http-push: don't check return value of lookup_unknown_object()