the last example doesn't need a ctx variable;

from Loic Tortay via jmc@

src/lib/libc/hash/sha2.3

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: sha2.3,v 1.15 2008/09/06 12:00:19 djm Exp $
+.\"	$OpenBSD: sha2.3,v 1.16 2008/09/12 05:33:10 djm Exp $
 .\"
 .\" Copyright (c) 2003, 2004 Todd C. Miller <Todd.Miller@courtesan.com>
 .\"
@@ -20,7 +20,7 @@
 .\"
 .\" See http://www.nist.gov/sha/ for the detailed standard
 .\"
-.Dd $Mdocdate: September 6 2008 $
+.Dd $Mdocdate: September 12 2008 $
 .Dt SHA2 3
 .Os
 .Sh NAME
@@ -243,7 +243,6 @@ putchar('\en');
 .Pp
 Alternately, the helper functions could be used in the following way:
 .Bd -literal -offset indent
-SHA2_CTX ctx;
 u_int8_t output[SHA256_DIGEST_STRING_LENGTH];
 char *buf = "abc";