vpn: Ensure child process is killed before exiting.
The UnitTest stage is becoming more strict; any auxiliary processes need to be
terminated before the test process exits, otherwise the test will fail.
BUG=chromium:596566
TEST=cros_run_unit_tests --board link
Change-Id: I582df3a6d388a4993a5cad937bf2f0b2a98aaf0a
Reviewed-on: https://chromium-review.googlesource.com/339741
Commit-Ready: Jacob Dufault <jdufault@chromium.org>
Tested-by: Jacob Dufault <jdufault@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed
