Avoid the ValueError exception for a ping timeout.

In ping.py:
If ping a ip address timeout, the return value "stdout"
is null. And the code "rtt=float(stdout)" raises a
ValueError exception. The better handle is to avoid the
exception and log a ping timeout.

Change-Id: Ia2a3ff44c35dda1a700a5109f8e642a636e89bc6
Signed-off-by: wu.zhihui <wu.zhihui1@zte.com.cn>

0 files changed, 0 insertions, 0 deletions