Fix referenses in section 3 manuals

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1900)
diff --git a/doc/man3/DSA_generate_key.pod b/doc/man3/DSA_generate_key.pod
index 4781abe..3305c16 100644
--- a/doc/man3/DSA_generate_key.pod
+++ b/doc/man3/DSA_generate_key.pod
@@ -24,7 +24,7 @@
 
 =head1 SEE ALSO
 
-L<dsa(3)>, L<ERR_get_error(3)>, L<rand(3)>,
+L<DSA_new(3)>, L<ERR_get_error(3)>, L<RAND_bytes(3)>,
 L<DSA_generate_parameters(3)>
 
 =head1 COPYRIGHT