iprutils: Segment Fault when trying to show details of missing devices.
iprutils: Segment Fault when trying to show details of missing devices.

This patch fixes seg fault when trying to show detailes of missing devices.

Signed-off-by: Wen Xiong<13ec231754c9586760640ac46d7526fab510aef1@linux.vnet.ibm.com>

leitao/iprutils