10076 make usr/src/test smatch clean

@@ -10,10 +10,11 @@
  */
 
 /*
  * 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.
  */