Use add_function instead of add_efun, for hex_to_string and string_to_hex.

Rev: src/modules/_Crypto/crypto.c:1.13

src/modules/_Crypto/crypto.c

 /*
- * $Id: crypto.c,v 1.12 1997/02/12 06:10:04 nisse Exp $
+ * $Id: crypto.c,v 1.13 1997/02/15 22:03:03 nisse Exp $
  *
  * A pike module for getting access to some common cryptos.
  *
@@ -487,8 +487,8 @@ void MOD_EXIT(crypto)(void) {}
 
 void pike_module_init(void)
 {
-  add_efun("string_to_hex", f_string_to_hex, "function(string:string)", OPT_TRY_OPTIMIZE);
-  add_efun("hex_to_string", f_hex_to_string, "function(string:string)", OPT_TRY_OPTIMIZE);
+  add_function("string_to_hex", f_string_to_hex, "function(string:string)", OPT_TRY_OPTIMIZE);
+  add_function("hex_to_string", f_hex_to_string, "function(string:string)", OPT_TRY_OPTIMIZE);
 #if 0
   MOD_INIT(md2)();
   MOD_INIT(md5)();