Please send SIGTERM to stop vpp_api_test, especially during
long-running operations such as a high-count asynchronous set of
ip_add_del_routes.
Otherwise, there's every chance that the data plane to vpp_api_test
message queue will fill and cause an easily-avoided deadlock.
Change-Id: I09309b445c354e1a692fed708dd5ea44d1ea9882
Signed-off-by: Dave Barach <dave@barachs.net>
