10076 make usr/src/test smatch clean

*** 10,19 ****
--- 10,20 ----
   */
  
  /*
   * Copyright 2012 Jilin Xpd <jilinxpd@gmail.com>
   * Copyright 2018 Nexenta Systems, Inc.
+  * Copyright (c) 2018, Joyent, Inc.
   */
  
  /*
   * Using mmap, make a file and padding it with random chars.
   */