crypt.t also punts on OpenBSD now.

OpenBSD claims to have crypt(), but it does something other than DES.  Eg:

    my $x = '$2b$12$FPWWO2RJ3CK4FINTw0Hi8OiPKJcX653gzSS.jqltHFMxyDmmQ0Hqq';
    print crypt('', $x);

The OpenBSD crypt man page implies that it is backward compat unless
it sees this "$2" or other number in the salt field, but on my
OpenBSD provided 5.20.2, this outputs nothing:

    print crypt("hi there", "aa");

So it seems like there's a ports problem or a Perl-on-OpenBSD bug.
At any rate, I don't want this to keep people from installing the
module, so I'm skipping the test on OpenBSD.

t/crypt.t

@@ -6,5 +6,6 @@ use autobox::Core;
 use Config;
 SKIP: {
     skip("crypt not defined on this system", 1) unless $Config{d_crypt};
+    skip("crypt redefined to use a different algorithm", 1) if $Config{osname} eq 'openbsd';
     is 'PLAINTEXT'->crypt('SALT'), 'SAPH9ylAEPe62';
-}
+}