Make the tests pass with warnings enabled.

diff --git a/t/constcalc.t b/t/constcalc.t
index 755d238..ad560b6 100644 (file)
--- a/t/constcalc.t
+++ b/t/constcalc.t
@@ -18,7 +18,7 @@ warn bar("bar")."\n";
 
 no Devel::BeginLift;
 
-foo();
+foo('');
 
 END {
   use Test::More 'no_plan';