Regressions on trunk at revision 253226 vs revision 253222

[H.J. Lu ia32 Core i7]

New failures:

New passes:
FAIL: compiler driver --help=fortran option(s): "^ +-.*[^:.]$" absent from output: "  -Wdo-subscript              Warn about possibly incorrect subscripts in do loops"
FAIL: compiler driver --help=warnings option(s): "^ +-.*[^:.]$" absent from output: "  -Wdo-subscript              Warn about possibly incorrect subscripts in do loops"