integcli: fix TestInspectLinksStopped with Go1.3

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
Merge pull request #7170 from unclejack/fix_testinspectlinksstopped

integcli: fix TestInspectLinksStopped with Go1.3