Use err directly rather than err.Error in main.go
Use err directly rather than err.Error in main.go

Signed-off-by: Phan Le <f2c5995718b197bbd6f63c99e8aab6ee2af1c495@pivotal.io>

allomov/bosh-init,forrestsill/bosh-init,allomov/bosh-init,cloudfoundry/bosh-init,cloudfoundry/bosh-init,allomov/bosh-init,cloudfoundry/bosh-init,forrestsill/bosh-init,forrestsill/bosh-init