util/lint/checkpatch: Untaint variables from env & command line

Jenkins is giving warnings due tainted variables from the environment
and command line:
Insecure $ENV{PATH} while running setgid at util/lint/checkpatch.pl line
907, <$conststructs> line 39.

Insecure dependency in piped open while running setgid at
util/lint/checkpatch.pl line 907, <$conststructs> line 39.

This should fix those warnings.

Change-Id: I6a09915d13547bf9a86c011d44cbcd39c46f3fec
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/21293
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

0 files changed, 0 insertions, 0 deletions