Update name of package containing dig on ArchLinux

openssh/map.jinja

@@ -10,7 +10,7 @@ that differ from whats in defaults.yaml
       'server': 'openssh',
       'client': 'openssh',
       'service': 'sshd',
-      'dig_pkg': 'bind-utils',
+      'dig_pkg': 'bind-tools',
     },
     'Debian': {
       'server': 'openssh-server',