Fix external helm repos to match across jobs

Change-Id: I8612e18d9ebad7b90f09d357b4a780deba53daf5
diff --git a/jjb/lint.yaml b/jjb/lint.yaml
index b9ac176..6690810 100644
--- a/jjb/lint.yaml
+++ b/jjb/lint.yaml
@@ -130,8 +130,9 @@
           #!/usr/bin/env bash
           set -eu -o pipefail
 
+          # Setup helm and external repos
           helm init --client-only
-          helm repo add incubator https://kubernetes-charts-incubator.storage.googleapis.com/
+          helm repo add incubator https://kubernetes-charts-incubator.storage.googleapis.com
           helm repo add rook-beta https://charts.rook.io/beta
           helm repo add cord https://charts.opencord.org