macros at start of line require a `.';

src/lib/libc/crypt/arc4random.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: arc4random.3,v 1.20 2007/05/02 09:20:59 pyr Exp $
+.\" $OpenBSD: arc4random.3,v 1.21 2007/05/02 16:48:54 jmc Exp $
 .\"
 .\" Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
 .\" All rights reserved.
@@ -87,7 +87,7 @@ before using
 since
 .Fn arc4random
 automatically initializes itself.
-Sh RETURN VALUES
+.Sh RETURN VALUES
 These functions are always successful, and no return value is
 reserved to indicate an error.
 .Sh SEE ALSO