t / chainlint / command-substitution.expecton commit sequencer: refactor check_todo_list() to work on a todo_list (6ca89c6)
   1(
   2        foo &&
   3        bar=$(gobble) &&
   4        baz
   5>) &&
   6(
   7?!AMP?! bar=$(gobble blocks)
   8        baz
   9>)