OS-1840 fmdump shall emit JSON
Reviewed by: Robert Mustacchi <rm@joyent.com>

*** 19,28 ****
--- 19,29 ----
  # CDDL HEADER END
  #
  #
  # Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
  # Copyright (c) 2012 by Delphix. All rights reserved.
+ # Copyright (c) 2013, Joyent, Inc. All rights reserved.
  #
  
  #
  # MAPFILE HEADER START
  #
*** 241,250 ****
--- 242,252 ----
      global:
          dump_nvlist;
          nvlist_add_hrtime;
          nvlist_lookup_hrtime;
          nvlist_print;
+         nvlist_print_json;
          nvlist_prt;
          nvlist_prtctl_alloc;
          nvlist_prtctl_free;
          nvlist_prtctl_getdest;
          nvlist_prtctl_dofmt;