DLPX-37540 TCP per-connection kernel statistics DLPX-37544 connstat command to display per-connection TCP statistics
Bring in Delphix enhancements to libofmt.

*** 18,27 ****
--- 18,28 ----
  #
  # CDDL HEADER END
  #
  #
  # Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
+ # Copyright (c) 2015 by Delphix. All rights reserved.
  # Copyright 2017 Joyent, Inc.
  #
  
  #
  # MAPFILE HEADER START
*** 65,75 ****
--- 66,78 ----
          iu_unregister_event;
          octet_to_hexascii;
          ofmt_open               { TYPE = FUNCTION; FILTER = libofmt.so.1 };
          ofmt_close              { TYPE = FUNCTION; FILTER = libofmt.so.1 };
          ofmt_print              { TYPE = FUNCTION; FILTER = libofmt.so.1 };
+         ofmt_print_header       { TYPE = FUNCTION; FILTER = libofmt.so.1 };
          ofmt_update_winsize     { TYPE = FUNCTION; FILTER = libofmt.so.1 };
+         ofmt_set_fs             { TYPE = FUNCTION; FILTER = libofmt.so.1 };
          ofmt_strerror           { TYPE = FUNCTION; FILTER = libofmt.so.1 };
          mask2plen;
          plen2mask;
          sockaddrcmp;
          sockaddrunspec;