Make trigger PD event script unsafe to not clash with GoCD/chruby [#76989434]
Make trigger PD event script unsafe to not clash with GoCD/chruby [#76989434]

Signed-off-by: Nick Wade <0ae7801e1450b93d494baac68f1ed62bce32d907@pivotal.io>

cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release