Demonstrate broken spec
Demonstrate broken spec

Our license_key contains some characters that are not hexadecimal. In
this commit I substitute the final `f` with a `Z` in the spec, expecting
it to fail, but the `license_key` contains 46 hexadecimal characters, so
it passes!

newrelic/puppet-nrsysmond,coxmediagroup/puppet-nrsysmond,denmat/puppet-nrsysmond,coxmediagroup/puppet-nrsysmond,denmat/puppet-nrsysmond,newrelic/puppet-nrsysmond