Regressions on master at commit r13-4294 vs commit r13-4276 on Linux/i686

[H.J. Lu]

New failures:

New passes:
FAIL: compiler driver --help=c++ option(s): "^ +-.*[^:.]$" absent from output: "  -fcontract-role=<name>:<semantics> Specify the semantics for all levels in a role (default, review), or a custom contract role with given semantics (ex: opt:assume,assume,assume)"
FAIL: gcc.dg/pr107127.c (test for excess errors)