10138 smatch fixes for usr/src/cmd/sgs

@@ -25,11 +25,13 @@
 /*
  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"
+/*
+ * Copyright (c) 2018, Joyent, Inc.
+ */
 
 #include "stdio.h"
 
 extern void exit();
 

@@ -38,11 +40,11 @@
 
 /* ARGSUSED */
 int
 main(int argc, char **argv)
 {
-        yylex();
+        (void) yylex();
         exit(0);
 
         /*NOTREACHED*/
         return (0);
 }