ssh: Fix xauth package name for Debian/Ubuntu

ssh/manifests/init.pp

@@ -117,10 +117,20 @@ class ssh::server {
         }
 
         # Needed for X11 Forwarding
+        case $::operatingsystem {
+            "centos","redhat","fedora": {
                 package { "xorg-x11-xauth":
                     ensure => installed,
                 }
             }
+            "debian","ubuntu": {
+                package { "libxau6":
+                    ensure => installed,
+                }
+            }
+            default: {}
+        }
+    }
 
     service { "sshd":
         name   => $::operatingsystem ? {