[Devil] Run pkill retry through strace
[Devil] Run pkill retry through strace

Runs the pkill retry on failure to kill the host forwarder through
strace. Unfortunately, the retries don't seem to fully fix the issue
with pkill returning -9, so hopefully running the retry through strace
will give us more information about what's going on.

Bug: chromium:1038789
Change-Id: I2abbc097f4cd09291ea03b26bf1820a733517a38
Reviewed-on: https://chromium-review.googlesource.com/c/catapult/+/2341758
Commit-Queue: Brian Sheedy <8cdc5cc1fa60ba15acb0d296e6f5592b7bb7d71c@chromium.org>
Auto-Submit: Brian Sheedy <8cdc5cc1fa60ba15acb0d296e6f5592b7bb7d71c@chromium.org>
Reviewed-by: Ben Pastene <e214258550f76fa23ac7c1d953424f3f468f5c6b@chromium.org>

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