Yum.repo should show correct name

[Wing924]

Description

YumRepo doesn't define to_s.
We expect output like this:

YumRepo: epel should exist

but actual like this:

#<Inspec::Resources::YumRepo:0x007f86e41949d0> should exist

InSpec and Platform Version

1.8.0

Replication Case

spec_rb:

describe yum.repo('epel') do
  it { should exist }
end

execute:

inspec exec spec.rb

will output:

...
#<Inspec::Resources::YumRepo:0x007f6b11c7a7d0> should
...

Possible Solutions

Implement YumRepo#to_s