facts.pp: use more compact parameter syntax

Author: kenyon

manifests/facts.pp

@@ -19,12 +19,7 @@
   $port          = $jira::tomcat_port,
   $contextpath   = $jira::contextpath,
   $json_packages = $jira::params::json_packages,
-  # lint:ignore:parameter_order
-  $uri           = $jira::tomcat_address ? {
-    undef   => 'localhost',
-    default => $jira::tomcat_address,
-  },
-  # lint:endignore
+  $uri           = pick($jira::tomcat_address, 'localhost')
 ) inherits jira::params {
   # Puppet Enterprise supplies its own ruby version if you're using it.
   # A modern ruby version is required to run the executable fact