test/Driver/driver-help.f90

! RUN: %flang -help 2>&1 | FileCheck %s --check-prefix=HELP
! RUN: not %flang -helps 2>&1 | FileCheck %s --check-prefix=ERROR

! RUN: %flang_fc1 -help 2>&1 | FileCheck %s --check-prefix=HELP-FC1
! RUN: not %flang_fc1 -helps 2>&1 | FileCheck %s --check-prefix=ERROR

! HELP:USAGE: flang
! HELP-EMPTY:
! HELP-NEXT:OPTIONS:

! HELP-FC1:USAGE: flang
! HELP-FC1-EMPTY:
! HELP-FC1-NEXT:OPTIONS:

! ERROR: error: unknown argument '-helps'; did you mean '-help'