andyzhangx: Automated cherry pick of #100731: Normalize share name to not include capital letters

JobBuild
5a5fb3e2
04-28 02:28
101551
04-28 02:27
pull-kubernetes-bazel-build 1390536631588491264 1387231673518657536
pull-kubernetes-bazel-test 1390536631605268480 1387231673543823360
pull-kubernetes-dependencies 1390536633182326784 1387231673560600576
pull-kubernetes-e2e-aks-engine-azure-disk-vmas 1387231676786020352
pull-kubernetes-e2e-aks-engine-azure-disk-vmss 1390525993889828864 1390484621191286784 1387231677620686848
pull-kubernetes-e2e-aks-engine-azure-disk-windows-dockershim 1387231674265243648
pull-kubernetes-e2e-aks-engine-azure-file 1387231678459547648
pull-kubernetes-e2e-aks-engine-azure-file-windows-dockershim 1387231675108298752
pull-kubernetes-e2e-aks-engine-conformance 1387231675947159552
pull-kubernetes-e2e-aks-engine-windows-containerd 1390484621178703872
pull-kubernetes-e2e-gce-100-performance 1390536635770212352 1387231673501880320
pull-kubernetes-e2e-gce-ubuntu-containerd 1390536631517188096 1387231673447354368
pull-kubernetes-e2e-kind 1390536636537769984 1390525993868857344 1390484621145149440 1387231673606737920
pull-kubernetes-integration 1390536634855854080 1387231673585766400
pull-kubernetes-node-e2e 1390536635631800320 1387231673468325888
pull-kubernetes-typecheck 1390536638211297280 1387231673627709440
pull-kubernetes-verify 1390536640002265088 1387231673652875264