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-rw-r--r--t/sort_graph.t1
1 files changed, 1 insertions, 0 deletions
diff --git a/t/sort_graph.t b/t/sort_graph.t
index 73750c4..09898bb 100644
--- a/t/sort_graph.t
+++ b/t/sort_graph.t
@@ -54,6 +54,7 @@ sub check_it {
ok(@sorted > 0);
if (!@sorted && $dump_it) {
+ no warnings 'once';
require Data::Dumper;
$Data::Dumper::Sortkeys = 1;
warn Data::Dumper::Dumper($list_unsorted, $requires);