Merge branch 'ps/leakfixes-part-10' into ps/bisect-double-free-fix

* ps/leakfixes-part-10: (27 commits)
  t: remove TEST_PASSES_SANITIZE_LEAK annotations
  test-lib: unconditionally enable leak checking
  t: remove unneeded !SANITIZE_LEAK prerequisites
  t: mark some tests as leak free
  t5601: work around leak sanitizer issue
  git-compat-util: drop now-unused `UNLEAK()` macro
  global: drop `UNLEAK()` annotation
  t/helper: fix leaking commit graph in "read-graph" subcommand
  builtin/branch: fix leaking sorting options
  builtin/init-db: fix leaking directory paths
  builtin/help: fix leaks in `check_git_cmd()`
  help: fix leaking return value from `help_unknown_cmd()`
  help: fix leaking `struct cmdnames`
  help: refactor to not use globals for reading config
  builtin/sparse-checkout: fix leaking sanitized patterns
  split-index: fix memory leak in `move_cache_to_base_index()`
  git: refactor builtin handling to use a `struct strvec`
  git: refactor alias handling to use a `struct strvec`
  strvec: introduce new `strvec_splice()` function
  line-log: fix leak when rewriting commit parents
  ...

diff --cc builtin/clone.c
Simple merge

diff --cc t/t0410-partial-clone.sh
Simple merge

diff --cc t/t0610-reftable-basics.sh
Simple merge

diff --cc t/t1016-compatObjectFormat.sh
Simple merge

diff --cc t/t5300-pack-object.sh
Simple merge

diff --cc t/t5310-pack-bitmaps.sh
Simple merge

diff --cc t/t5330-no-lazy-fetch-with-commit-graph.sh
Simple merge

diff --cc t/t5332-multi-pack-reuse.sh
Simple merge

diff --cc t/t5500-fetch-pack.sh
Simple merge

diff --cc t/t5582-fetch-negative-refspec.sh
Simple merge

diff --cc t/t5616-partial-clone.sh
Simple merge

diff --cc t/t7800-difftool.sh
Simple merge

diff --cc t/test-lib.sh
Simple merge