Set +e/-e around the 'nc' command to prevent early exit.
Set +e/-e around the 'nc' command to prevent early exit.

[#98833310](https://www.pivotaltracker.com/story/show/98833310)

cloudfoundry-incubator/bosh-vsphere-cpi-release,nimbus-cloud/bosh-vsphere-cpi-release,nimbus-cloud/bosh-vsphere-cpi-release,wcamarao/bosh-vsphere-cpi-release,cloudfoundry-incubator/bosh-vsphere-cpi-release,wcamarao/bosh-vsphere-cpi-release,wcamarao/bosh-vsphere-cpi-release,nimbus-cloud/bosh-vsphere-cpi-release,cloudfoundry-incubator/bosh-vsphere-cpi-release,cloudfoundry-incubator/bosh-vsphere-cpi-release,cloudfoundry-incubator/bosh-vsphere-cpi-release