tweak update-gecko-manifests.py
tweak update-gecko-manifests.py

luser/sccache2,luser/sccache2,glandium/sccache,luser/sccache2,mozilla/sccache,mozilla/sccache,glandium/sccache,glandium/sccache,glandium/sccache,mozilla/sccache,luser/sccache2