gpgkey applied on every run due to output change

[towo]

Affected Puppet, Ruby, OS and module versions/distributions

• Module version: <= 3.1.1
• GPG version: >= 2.2 (assumption)

How to reproduce (e.g Puppet code you use)

yum::gpgkey { "/etc/pki/rpm-gpg/${keyname}.key":
  ensure => present,
  source => $keyfile,
}

What are you seeing

Resource being reapplied ad infinitum, due to GPG 2.2 (or a version between 2.0.9 and 2.2.5 inclusively) having a different return format for gpg $file.

What behaviour did you expect instead

Applied once.

Output log

hawking:~ # puppet agent --test
[...]
Notice: /Stage[main]/Profile::Base::Yum/Yum::Gpgkey[/etc/pki/rpm-gpg/Puppet.key]/Exec[rpm-import-/etc/pki/rpm-gpg/Puppet.key]/returns: executed successfully
[...]
Notice: Applied catalog in 4.70 seconds
hawking:~ # puppet agent --test
[...]
Notice: /Stage[main]/Profile::Base::Yum/Yum::Gpgkey[/etc/pki/rpm-gpg/Puppet.key]/Exec[rpm-import-/etc/pki/rpm-gpg/Puppet.key]/returns: executed successfully
[...]
Notice: Applied catalog in 4.76 seconds

Any additional information you'd like to impart

PR incoming after this issue.