10100 Illumos is confused about calloc() arguments

*** 21,33 ****
  /*
   * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! #pragma ident   "%Z%%M% %I%     %E% SMI"
  
- 
  #include        <stdlib.h>
  #include        <stdio.h>
  #include        <string.h>
  #include        <proc_service.h>
  #include        <link.h>
--- 21,34 ----
  /*
   * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! /*
!  * Copyright (c) 2018, Joyent, Inc.
!  */
  
  #include        <stdlib.h>
  #include        <stdio.h>
  #include        <string.h>
  #include        <proc_service.h>
  #include        <link.h>
*** 160,170 ****
  rd_new(struct ps_prochandle *php)
  {
          rd_agent_t      *rap;
  
          LOG(ps_plog(MSG_ORIG(MSG_DB_RDNEW), php));
!         if ((rap = (rd_agent_t *)calloc(sizeof (rd_agent_t), 1)) == NULL)
                  return (0);
  
          rap->rd_psp = php;
          (void) mutex_init(&rap->rd_mutex, USYNC_THREAD, 0);
          if (rd_reset(rap) != RD_OK) {
--- 161,171 ----
  rd_new(struct ps_prochandle *php)
  {
          rd_agent_t      *rap;
  
          LOG(ps_plog(MSG_ORIG(MSG_DB_RDNEW), php));
!         if ((rap = (rd_agent_t *)calloc(1, sizeof (rd_agent_t))) == NULL)
                  return (0);
  
          rap->rd_psp = php;
          (void) mutex_init(&rap->rd_mutex, USYNC_THREAD, 0);
          if (rd_reset(rap) != RD_OK) {