RUN: llvm-mt /h | FileCheck %s -check-prefix=HELP

HELP:      OVERVIEW: Manifest Tool

RUN: not llvm-mt /foo 2>&1 >/dev/null | FileCheck %s -check-prefix=INVALID
INVALID: llvm-mt: error: invalid option '/foo'

RUN: not llvm-mt /oyt:%t 2>&1 | FileCheck %s -check-prefix=INVALID-BUT-CLOSE
INVALID-BUT-CLOSE: llvm-mt: error: invalid option '/oyt:{{.*}}help.test.tmp', did you mean '/out:{{.*}}help.test.tmp'?