Merge branch 'ar/test-cleanup'

Test clean-up.

* ar/test-cleanup:
  t7527: use test_when_finished in 'case insensitive+preserving'
  t6422: drop commented out code
  t6003: uncomment test '--max-age=c3, --topo-order'

diff --cc t/t7527-builtin-fsmonitor.sh
Simple merge