fix accessor names

lib/IdPAccountManager/WebRequest.pm

@@ -460,7 +460,7 @@ sub req_validate_token {
         return undef;
     }
 
-    if (! $token->get('sp_entityid') eq $self->{in}->{sp_entityid}) {
+    if (! $token->sp_entityid() eq $self->{in}->{sp_entityid}) {
         push @{ $self->{out}->{errors} }, "wrong_token_for_sp";
         $self->{logger}->errorf(
             "Authentication token %s cannot be used for SP with entityid %s",