util/cbfstool: Fix building with clang & -Wshadow

Clang -Wshadow is more rigorous than GCC and picks a shadowing of the
optarg global variable in /usr/include/bits/getopt_core.h .

TESTED: builds with both gcc and clang.

Change-Id: Ifc362c84511abb6a000671f03498e841d7747074
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70508
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>

0 files changed, 0 insertions, 0 deletions