remove support for non-ANSI compilation

@@ -17,19 +17,20 @@
  * fields enclosed by brackets "[]" replaced with your own identifying
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
  */
+/*
+ * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+ */
 /*      Copyright (c) 1988 AT&T */
 /*        All Rights Reserved   */
 
 
 #ifndef _NLIST_H
 #define _NLIST_H
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.8.2.4 */
-
 #ifdef  __cplusplus
 extern "C" {
 #endif
 
 struct nlist {

@@ -39,15 +40,11 @@
         unsigned short  n_type;         /* type and derived type */
         char            n_sclass;       /* storage class */
         char            n_numaux;       /* number of aux. entries */
 };
 
-#if defined(__STDC__)
 extern int nlist(const char *, struct nlist *);
-#else   /* __STDC__ */
-extern int nlist();
-#endif  /* __STDC__ */
 
 #ifdef  __cplusplus
 }
 #endif