10101 audio tools need smatch fixes

*** 21,30 ****
--- 21,34 ----
  /*
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
+ /*
+  * Copyright (c) 2018, Joyent, Inc.
+  */
+ 
  /* Command-line audio play utility */
  
  #include <stdio.h>
  #include <errno.h>
  #include <ctype.h>
*** 800,810 ****
                  if (mapaddr != 0)
                          (void) munmap(mapaddr, st.st_size);
                  (void) close(ifd);              /* close input file */
                  if (Errdetect) {
                          cnt = 0;
!                         audio_set_play_error(Audio_fd, (unsigned int *)&cnt);
                          if (cnt) {
                                  Error(stderr,
                                      MGET("%s: output underflow in %s\n"),
                                      Ifile, prog);
                                  errorStatus++;
--- 804,815 ----
                  if (mapaddr != 0)
                          (void) munmap(mapaddr, st.st_size);
                  (void) close(ifd);              /* close input file */
                  if (Errdetect) {
                          cnt = 0;
!                         (void) audio_set_play_error(Audio_fd,
!                             (unsigned int *)&cnt);
                          if (cnt) {
                                  Error(stderr,
                                      MGET("%s: output underflow in %s\n"),
                                      Ifile, prog);
                                  errorStatus++;