Update latent slave scheduled shutdown time (#166)
Update latent slave scheduled shutdown time (#166)

Due to the addition of new test cases and the additional overhead
of the coverage builder increase the scheduled shutdown time.

Signed-off-by: Brian Behlendorf <32d50ad1e384dcb9a5bf7e40fa470df5dabaf348@llnl.gov>
zfsonlinux/zfs-buildbot,zfsonlinux/zfs-buildbot