hint that crypt() et. al. are declared in unistd.h; from Jon Buller in

PR lib/3488.

lib/libcrypt/crypt.3

@@ -1,4 +1,4 @@
-.\"	$NetBSD: crypt.3,v 1.3 1995/10/12 15:41:24 jtc Exp $
+.\"	$NetBSD: crypt.3,v 1.4 1997/04/18 06:32:16 mikel Exp $
 .\"
 .\" Copyright (c) 1989, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -44,6 +44,7 @@
 .Nm des_cipher
 .Nd DES encryption
 .Sh SYNOPSIS
+.Fd #include <unistd.h>
 .Ft char
 .Fn *crypt "const char *key" "const char *setting"
 .Ft int
@@ -56,7 +57,7 @@
 .Fn des_cipher "const char *in" "char *out" "long salt" "int count"
 .Sh DESCRIPTION
 The
-.Xr crypt
+.Fn crypt
 function
 performs password encryption.
 It is derived from the
@@ -134,7 +135,7 @@ are used, and the returned value is a
 string 13 bytes in length.
 .Pp
 The
-functions,
+functions
 .Fn encrypt ,
 .Fn setkey ,
 .Fn des_setkey