t / chainlint / close-subshell.expecton commit t3510: stop using '-m 1' to force failure mid-sequence of cherry-picks (c812bd4)
   1(
   2        foo
   3>) &&
   4(
   5        bar
   6>) >out &&
   7(
   8        baz
   9>) 2>err &&
  10(
  11        boo
  12>) <input &&
  13(
  14        bip
  15>) | wuzzle &&
  16(
  17        bop
  18>) | fazz       fozz &&
  19(
  20        bup
  21>) |
  22fuzzle &&
  23(
  24        yop
  25>)