Parameter type for vhost.pp $headers is incorrect

[chillinger]

ae56cc9 added types to various parameters

The Type for vhost.pp $headers is now Optional[String]

But it should be Array[String] with default []
OR
Optional[Array[String]] with default undef

[chillinger]

Template vhost/_header.erb expects an Array as well

There also is an error in the acceptance test
spec/defines/vhost_spec.rb

[cocker-cc]

me too

[ekohl]

In #2251 this should be fixed, but the job had some issues where it was timing out. Please have a look and see if that addresses your concerns.

[ekohl]

I think this was resolved by #2252 (replacement for #2251). Please reopen or open a new issue if it didn't.