client: Refactor of register_signal_handler.

Adds a missing parameter to a signal handler.

BUG=None
TEST=CQ passes

Cq-Depend: chromium:2783043
Change-Id: I14678b9ce3a97d57420dd342d5b749be6bfe0b7f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/adhd/+/2782855
Tested-by: Allen Webb <allenwebb@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Commit-Queue: Allen Webb <allenwebb@google.com>
1 file changed