(maint) Improve version matching fact
(maint) Improve version matching fact

* '/' not being a special char, there is no need to escape it (removed preceding '\');
* '.' matching any char, escaping it is required so that it matches a dot char (added preceding '\').
yakatz/puppetlabs-apache,yakatz/puppetlabs-apache,traylenator/puppetlabs-apache,puppetlabs/puppetlabs-apache,puppetlabs/puppetlabs-apache,traylenator/puppetlabs-apache