Use onbld mandoc.

@@ -9,11 +9,11 @@
 # at http://www.illumos.org/license/CDDL.
 #
 
 #
 # Copyright 2011, Richard Lowe
-# Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+# Copyright 2014 Nexenta Systems, Inc.  All rights reserved.
 #
 
 SUBDIRS=        man1            \
                 man1b           \
                 man1c           \