Rewrite page(2) references to page(3).
Add description of new libmach.
diff --git a/man/man3/sechash.3 b/man/man3/sechash.3
index a734256..51204ab 100644
--- a/man/man3/sechash.3
+++ b/man/man3/sechash.3
@@ -137,14 +137,14 @@
.I sha1unpickle
unmarshal a pickled digest.
All four routines return a pointer to a newly
-.IR malloc (2)'d
+.IR malloc (3)'d
object.
.SH SOURCE
.B /sys/src/libsec
.SH SEE ALSO
-.IR aes (2),
-.IR blowfish (2),
-.IR des (2),
-.IR elgamal (2),
-.IR rc4 (2),
-.IR rsa (2)
+.IR aes (3),
+.IR blowfish (3),
+.IR des (3),
+.IR elgamal (3),
+.IR rc4 (3),
+.IR rsa (3)
