Reduce lint

@@ -1206,11 +1206,11 @@
 
         /*
          * This thread should receive SIGHUP so that it can close the log
          * file, and reopen it, during log rotation.
          */
-        sigset(SIGHUP, hup_handler);
+        (void) sigset(SIGHUP, hup_handler);
         (void) sigfillset(&blockset);
         (void) sigdelset(&blockset, SIGHUP);
         (void) thr_sigsetmask(SIG_BLOCK, &blockset, NULL);
 
         if (!shutting_down) {

@@ -1382,10 +1382,11 @@
 
 done:
         zonecfg_fini_handle(handle);
 }
 
+/* ARGSUSED -- "id" might be used in the future. */
 void
 create_log_thread(zlog_t *logp, zoneid_t id)
 {
         int res;