ntp: In Debian family, require package before service

manifests/ntp.pp

@@ -50,6 +50,10 @@ class base::ntp {
         enable    => true,
         hasstatus => false,
         status    => 'pidof ntpd',
+        require   => [
+                      Package['ntp'],
+                      Package['ntpdate'],
+                     ]
       }
       file { '/etc/default/ntpdate':
         source => 'puppet:///modules/base/ntp/etc/default/ntpdate',