git: Setup URL rewriting to use https instead of sso.
diff --git a/vars/functions.groovy b/vars/functions.groovy
index 1b2ef77..72922d1 100644
--- a/vars/functions.groovy
+++ b/vars/functions.groovy
@@ -10,6 +10,8 @@
        git clone https://gerrit.googlesource.com/gcompute-tools /tmp/gcompute-tools
        /tmp/gcompute-tools/git-cookie-authdaemon
 
+       git config url.https://gerrit.googlesource.com/.insteadOf sso://gerrit.googlesource.com/
+
        mkdir -p .repo/local_manifests
        mkdir -p cache
        chmod 777 cache