Debugging for getIam token problem

Change-Id: I8f3eff3e46f9b871a3466d1df4f66ea2056745d6
diff --git a/vars/pkill_port_forward.groovy b/vars/pkill_port_forward.groovy
index 286e341..2de9759 100644
--- a/vars/pkill_port_forward.groovy
+++ b/vars/pkill_port_forward.groovy
@@ -123,7 +123,7 @@
     }
     catch (Exception err) {  // groovylint-disable-line CatchException
         ans = false
-        String iam = getIam(name)
+        String iam = getIam('main')
         println("** ${iam}: EXCEPTION ${err}")
         throw err
     }