Fix restorecon exec on /var/lib/git

The restorecon command for selinux needed to require /var/lib/git
and the syntax is actually "File" rather than "Folder" here.

Also added refreshonly so it only runs when /var/lib/git changes.

Change-Id: I88f40dc3051d66ef9f9dc4d667474b8cc7d2a5f7

modules/cgit/manifests/init.pp

@@ -51,11 +51,14 @@ class cgit {
     owner   => 'cgit',
     group   => 'cgit',
     mode    => '0644',
+    require => User['cgit'],
   }
 
   exec { 'restorecon -R -v /var/lib/git':
-    path      => '/sbin',
-    subscribe => Folder['/var/lib/git']
+    path        => '/sbin',
+    require     => File['/var/lib/git'],
+    subscribe   => File['/var/lib/git'],
+    refreshonly => true,
   }
 
   selboolean { 'httpd_enable_cgi':