azure-cli: az acr login failed

@djyou The login command failed in cmd:

> az acr login
Incorrect function.

Here is the configuration of default values:

> az configure

Welcome to the Azure CLI! This command will guide you through logging in and setting some default values.

Your settings can be found at C:\Users\shizh\.azure\config
Your current configuration is as follows:

[cloud]
name = AzureCloud

[core]
first_run = yes

[defaults]
group = shizhacrg
acr = shizhacr

Other commands seem working properly:

> az acr list
[
  {
    "adminUserEnabled": false,
    "creationDate": "2017-10-18T09:16:15.114582+00:00",
    "id": "/subscriptions/dfb63c8c-7c89-4ef8-af13-75c1d873c895/resourceGroups/shizhacrg/providers/Microsoft.ContainerRegistry/registries/shizhacr",
    "location": "eastus",
    "loginServer": "shizhacr.azurecr.io",
    "name": "shizhacr",
    "provisioningState": "Succeeded",
    "resourceGroup": "shizhacrg",
    "sku": {
      "name": "Managed_Standard",
      "tier": "Managed"
    },
    "storageAccount": null,
    "tags": {},
    "type": "Microsoft.ContainerRegistry/registries"
  }
]

> az acr show
{
  "adminUserEnabled": false,
  "creationDate": "2017-10-18T09:16:15.114582+00:00",
  "id": "/subscriptions/dfb63c8c-7c89-4ef8-af13-75c1d873c895/resourceGroups/shizhacrg/providers/Microsoft.ContainerRegistry/registries/shizhacr",
  "location": "eastus",
  "loginServer": "shizhacr.azurecr.io",
  "name": "shizhacr",
  "provisioningState": "Succeeded",
  "resourceGroup": "shizhacrg",
  "sku": {
    "name": "Managed_Standard",
    "tier": "Managed"
  },
  "storageAccount": null,
  "tags": {},
  "type": "Microsoft.ContainerRegistry/registries"
}

> az acr show-usage
{
  "value": [
    {
      "currentValue": 0,
      "limit": 107374182400,
      "name": "Size",
      "unit": "Bytes"
    },
    {
      "currentValue": 0,
      "limit": 10,
      "name": "Webhooks",
      "unit": "Count"
    }
  ]
}

> az acr repository list
[]

After enabling Admin user:

> docker login shizhacr.azurecr.io
Username (shizhacr): shizhacr
Password:
Login Succeeded

but still

> az acr login
Incorrect function.

---

Environment summary

Install Method (e.g. pip, interactive script, apt-get, Docker, MSI, edge build) / CLI version (az --version) / OS version / Shell Type (e.g. bash, cmd.exe, Bash on Windows)

> az --version
azure-cli (2.0.19)

acr (2.0.13)
acs (2.0.17)
appservice (0.1.18)
backup (1.0.1)
batch (3.1.5)
batchai (0.1.1)
billing (0.1.5)
cdn (0.0.9)
cloud (2.0.8)
cognitiveservices (0.1.8)
command-modules-nspkg (2.0.1)
component (2.0.7)
configure (2.0.11)
consumption (0.1.5)
container (0.1.11)
core (2.0.18)
cosmosdb (0.1.13)
dla (0.0.12)
dls (0.0.15)
eventgrid (0.1.4)
extension (0.0.4)
feedback (2.0.6)
find (0.2.7)
interactive (0.3.10)
iot (0.1.12)
keyvault (2.0.12)
lab (0.0.11)
monitor (0.0.10)
network (2.0.16)
nspkg (3.0.1)
profile (2.0.14)
rdbms (0.0.7)
redis (0.2.9)
resource (2.0.16)
role (2.0.13)
servicefabric (0.0.4)
sql (2.0.13)
storage (2.0.17)
vm (2.0.16)

Python location 'C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\python.exe'
Extensions directory 'C:\Users\shizh\.azure\cliextensions'

Python (Windows) 3.6.1 (v3.6.1:69c0db5, Mar 21 2017, 17:54:52) [MSC v.1900 32 bit (Intel)]

Legal docs and information: aka.ms/AzureCliLegal