Fixed failure when a user's home dir is a drive root on Windows#84

rayluo merged 3 commits into

AzureAD:devAzureAD/microsoft-authentication-extensions-for-python:devfrom

wintoncode:handle-root-dir-home-on-windowswintoncode/microsoft-authentication-extensions-for-python:handle-root-dir-home-on-windowsCopy head branch name to clipboard