Remove aks win admin username pattern#11312

Merged

akning-ms merged 1 commit intoAzure:dev-containerservice-Microsoft.ContainerService-2020-11-01from mainred:remove-aks-win-adminUsername-pattern-11-01

Oct 28, 2020

+26-52

Commits on Oct 21, 2020

Remove invalid pattern and adjust description
Qingchuan Hao
committed