bug 1467532: Update to hashin 0.13.4
bug 1467532: Update to hashin 0.13.4

* hashin 0.13.3 → 0.13.4: Add --dry-run parameter, tune helpful output

mozilla/kuma,a2sheppy/kuma,mozilla/kuma,jwhitlock/kuma,SphinxKnight/kuma,Elchi3/kuma,mozilla/kuma,SphinxKnight/kuma,Elchi3/kuma,a2sheppy/kuma,jwhitlock/kuma,SphinxKnight/kuma,a2sheppy/kuma,jwhitlock/kuma,Elchi3/kuma,jwhitlock/kuma,a2sheppy/kuma,SphinxKnight/kuma,jwhitlock/kuma,mozilla/kuma,Elchi3/kuma,mozilla/kuma,SphinxKnight/kuma,escattone/kuma,escattone/kuma,Elchi3/kuma,escattone/kuma,a2sheppy/kuma,SphinxKnight/kuma