Merge branch 'jc/test-modernization'

Merge branch 'jc/test-modernization'

* jc/test-modernization:
  t7101-reset-empty-subdirs: modernize test format
  t6050-replace: modernize test format
  t5306-pack-nobase: modernize test format
  t5303-pack-corruption-resilience: modernize test format
  t5301-sliding-window: modernize test format
  t5300-pack-object: modernize test format
  t4206-log-follow-harder-copies: modernize test format
  t4202-log: modernize test format
  t4004-diff-rename-symlink: modernize test format
  t4003-diff-rename-1: modernize test format
  t4002-diff-basic: modernize test format
  t3903-stash: modernize test format
  t3700-add: modernize test format
  t3500-cherry: modernize test format
  t1006-cat-file: modernize test format
  t1002-read-tree-m-u-2way: modernize test format
  t1001-read-tree-m-2way: modernize test format
  t3210-pack-refs: modernize test format
  t0030-stripspace: modernize test format
  t0000-basic: modernize test format