t / chainlint / negated-one-liner.teston commit switch: reject if some operation is in progress (c45f0f5)
   1# LINT: top-level one-liner subshell
   2! (foo && bar) &&
   3! (foo && bar) >baz &&
   4
   5# LINT: top-level one-liner subshell missing internal "&&"
   6! (foo; bar) &&
   7! (foo; bar) >baz