10109 libzonecfg needs a smatch fix

*** 20,29 ****
--- 20,30 ----
   */
  
  /*
   * Copyright 2014 Gary Mills
   * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+  * Copyright (c) 2018, Joyent, Inc.
   * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
   */
  
  #include <libsysevent.h>
  #include <pthread.h>
*** 2979,2990 ****
          }
  
          if (strlen(path) <= g_devwalk_skip_prefix)
                  return (0);
  
!         g_devwalk_cb(path + g_devwalk_skip_prefix, st->st_uid, st->st_gid,
!             st->st_mode & S_IAMB, acl_txt != NULL ? acl_txt : "",
              g_devwalk_data);
          free(acl_txt);
          return (0);
  }
  
--- 2980,2991 ----
          }
  
          if (strlen(path) <= g_devwalk_skip_prefix)
                  return (0);
  
!         (void) g_devwalk_cb(path + g_devwalk_skip_prefix, st->st_uid,
!             st->st_gid, st->st_mode & S_IAMB, acl_txt != NULL ? acl_txt : "",
              g_devwalk_data);
          free(acl_txt);
          return (0);
  }