lib/Unicode/UCD.t: Clarify diagnostic

This diagnostic comes from either of 2 problems, so mention both of
them.

diff --git a/lib/Unicode/UCD.t b/lib/Unicode/UCD.t
index 09ea57c..a646358 100644 (file)
--- a/lib/Unicode/UCD.t
+++ b/lib/Unicode/UCD.t
@@ -2070,7 +2070,7 @@ foreach my $prop (sort keys %props) {
     else {  # Don't know this property nor format.
 
         fail("prop_invmap('$display_prop')");
-        diag("Unknown format '$format'");
+        diag("Unknown property '$display_prop' or format '$format'");
         next PROPERTY;
     }