Fix country code conversion

Change-Id: I2f983daef41ca772392c394110fb2acd321b0f64
diff --git a/t/list2vc-def.t b/t/list2vc-def.t
index 953f5c2..0a707d1 100644
--- a/t/list2vc-def.t
+++ b/t/list2vc-def.t
@@ -95,7 +95,7 @@
 
 is($json->{'collection'}->{'@type'}, 'koral:doc', 'type');
 is($json->{'collection'}->{'key'}, 'pubPlaceKey', 'type');
-is($json->{'collection'}->{'value'}, 'A', 'type');
+is($json->{'collection'}->{'value'}, 'AT', 'type');
 is($json->{'collection'}->{'comment'}, 'name:"Korpora aus Österreich"', 'type');
 
 my $corpw = catfile(dirname(__FILE__), 'data', 'corp-w-vas-n91-kor17');