Merge pull request voxpupuli#549 from hybby/master

Fix error text in `rabbitmq_vhost` provider

lib/puppet/provider/rabbitmq_vhost/rabbitmqctl.rb

@@ -16,7 +16,7 @@ def self.instances
       if line =~ /^(\S+)$/
         new(:name => $1)
       else
-        raise Puppet::Error, "Cannot parse invalid user line: #{line}"
+        raise Puppet::Error, "Cannot parse invalid vhost line: #{line}"
       end
     end
   end