wording/grammar tweaks;

src/lib/libc/crypt/blowfish.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: blowfish.3,v 1.17 2006/07/26 12:45:53 jmc Exp $
+.\" $OpenBSD: blowfish.3,v 1.18 2006/07/26 12:48:35 jmc Exp $
 .\"
 .\" Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
 .\" All rights reserved.
@@ -103,12 +103,13 @@ The functions
 .Fn Blowfish_initstate ,
 .Fn Blowfish_expand0state ,
 .Fn Blowfish_expandstate ,
-.Fn Blowfish_encipher
+.Fn Blowfish_encipher ,
 and
 .Fn Blowfish_decipher
 are used for customization of the
 .Em Blowfish
-cipher, e.g., for the blowfish password hashing function.
+cipher,
+for example for the blowfish password hashing function.
 .Sh SEE ALSO
 .Xr passwd 1 ,
 .Xr crypt 3 ,