Update RunCommand operation output as valid json object

[koralski]

This checklist is used to make sure that common issues in a pull request are addressed. This will expedite the process of getting your pull request merged and avoid extra work on your part to fix issues discovered during the review process.

PR information

• The title of the PR is clear and informative.
• There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For information on cleaning up the commits in your pull request, see this page.
• Except for special cases involving multiple contributors, the PR is started from a fork of the main repository, not a branch.
• If applicable, the PR references the bug/issue that it fixes.
• Swagger files are correctly named (e.g. the api-version in the path should match the api-version in the spec).

Quality of Swagger

• I have read the contribution guidelines.
• My spec meets the review criteria:
  • The spec conforms to the Swagger 2.0 specification.
  • The spec follows the guidelines described in the Swagger checklist document.
  • Validation tools were run on swagger spec(s) and have all been fixed in this PR.

[AutorestCI]

Automation for azure-sdk-for-python

The initial PR has been merged into your service PR:
Azure/azure-sdk-for-python#2487

[AutorestCI]

Automation for azure-sdk-for-go

Encountered a Subprocess error: (azure-sdk-for-go)

Command: ['/usr/local/bin/autorest', '/tmp/tmpvg4lrhrg/rest/specification/compute/resource-manager/readme.md', '--go', '--go-sdk-folder=/tmp/tmpvg4lrhrg/src/github.com/Azure/azure-sdk-for-go', '--multiapi', '--use=@microsoft.azure/autorest.go@~2.1.105', '--use-onever', '--verbose']
Finished with return code 1
and output:

AutoRest code generation utility [version: 2.0.4280; node: v8.11.3]
(C) 2018 Microsoft Corporation.
https://aka.ms/autorest
   Loading AutoRest core      '/root/.autorest/@microsoft.azure_autorest-core@2.0.4280/node_modules/@microsoft.azure/autorest-core/dist' (2.0.4280)
   Loading AutoRest extension '@microsoft.azure/autorest.go' (~2.1.105->2.1.105)
   Loading AutoRest extension '@microsoft.azure/autorest.modeler' (2.3.38->2.3.38)
Processing batch task - {"tag":"package-2018-04"} .
FATAL: System.InvalidOperationException: Swagger document contains two or more x-ms-enum extensions with the same name 'StorageAccountTypes' and different values: Standard_LRS,Premium_LRS vs. Standard_LRS,Premium_LRS,StandardSSD_LRS
   at AutoRest.Modeler.ObjectBuilder.BuildServiceType(String serviceTypeName, Boolean required) in C:\Users\ci\AppData\Local\Temp\PUBLISH8kiit\38_20171116T010915\autorest.modeler\src\ObjectBuilder.cs:line 147
   at AutoRest.Modeler.SchemaBuilder.ParentBuildServiceType(String serviceTypeName, Boolean required) in C:\Users\ci\AppData\Local\Temp\PUBLISH8kiit\38_20171116T010915\autorest.modeler\src\SchemaBuilder.cs:line 204
   at AutoRest.Modeler.SchemaBuilder.BuildServiceType(String serviceTypeName, Boolean required) in C:\Users\ci\AppData\Local\Temp\PUBLISH8kiit\38_20171116T010915\autorest.modeler\src\SchemaBuilder.cs:line 46
   at AutoRest.Modeler.SchemaBuilder.BuildServiceType(String serviceTypeName, Boolean required) in C:\Users\ci\AppData\Local\Temp\PUBLISH8kiit\38_20171116T010915\autorest.modeler\src\SchemaBuilder.cs:line 131
   at AutoRest.Modeler.SchemaBuilder.BuildServiceType(String serviceTypeName, Boolean required) in C:\Users\ci\AppData\Local\Temp\PUBLISH8kiit\38_20171116T010915\autorest.modeler\src\SchemaBuilder.cs:line 131
   at AutoRest.Modeler.SwaggerModeler.BuildCompositeTypes() in C:\Users\ci\AppData\Local\Temp\PUBLISH8kiit\38_20171116T010915\autorest.modeler\src\SwaggerModeler.cs:line 271
   at AutoRest.Modeler.SwaggerModeler.Build(ServiceDefinition serviceDefinition) in C:\Users\ci\AppData\Local\Temp\PUBLISH8kiit\38_20171116T010915\autorest.modeler\src\SwaggerModeler.cs:line 66
   at AutoRest.Modeler.Program.<ProcessInternal>d__2.MoveNext() in C:\Users\ci\AppData\Local\Temp\PUBLISH8kiit\38_20171116T010915\autorest.modeler\src\Program.cs:line 60
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at NewPlugin.<Process>d__15.MoveNext()
FATAL: go/imodeler1 - FAILED
FATAL: Error: Plugin imodeler1 reported failure.
Process() cancelled due to exception : Plugin imodeler1 reported failure.
Failure during batch task - {"tag":"package-2018-04"} -- Error: Plugin imodeler1 reported failure..
  Error: Plugin imodeler1 reported failure.

[koralski]

This is to address incidents reported the PowerShell run command returns empty result. This is due to the fact that operation output was reported as array instead of valid application/json object. CRP changes are deployed and now the operation output is {value:[...]} instead of just array [...]
The fix is from api version 2018-04-01

[AutorestCI]

Automation for azure-sdk-for-node

The initial PR has been merged into your service PR:
Azure/azure-sdk-for-node#2710

[AutorestCI]

Automation for azure-sdk-for-java

Nothing to generate for azure-sdk-for-java

[AutorestCI]

Automation for azure-sdk-for-ruby

Nothing to generate for azure-sdk-for-ruby

[lmazuel]

@AutorestCI regenerate azure-sdk-for-python

[AutorestCI]

Encountered an unknown error

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/azure_devtools/ci_tools/github_tools.py", line 32, in exception_to_github
    yield context
  File "/usr/local/lib/python3.6/dist-packages/azure_devtools/ci_tools/bot_framework.py", line 105, in manage_comment
    response = getattr(self.handler, orderstr)(webhook_data.issue, *split_text)
  File "/usr/local/lib/python3.6/dist-packages/swaggertosdk/restapi/restbot.py", line 54, in regenerate
    return self.rebuild(issue, repotag)
  File "/usr/local/lib/python3.6/dist-packages/swaggertosdk/restapi/restbot.py", line 36, in rebuild
    self.sdk_default_base
  File "/usr/local/lib/python3.6/dist-packages/swaggertosdk/restapi/github_handler.py", line 151, in rest_pr_management
    sdk_tag=sdk_tag
  File "/usr/local/lib/python3.6/dist-packages/swaggertosdk/SwaggerToSdkNewCLI.py", line 243, in generate_sdk_from_git_object
    with manage_git_folder(gh_token, Path(temp_dir) / Path("rest"), branched_rest_api_id) as restapi_git_folder, \
  File "/usr/lib/python3.6/contextlib.py", line 81, in __enter__
    return next(self.gen)
  File "/usr/local/lib/python3.6/dist-packages/azure_devtools/ci_tools/github_tools.py", line 267, in manage_git_folder
    clone_to_path(gh_token, temp_dir, split_git_id[0], branch_or_commit=branch, pr_number=pr_number)
  File "/usr/local/lib/python3.6/dist-packages/azure_devtools/ci_tools/github_tools.py", line 198, in clone_to_path
    _git_clone_to_path(https_authenticated_url, folder, branch_or_commit)
  File "/usr/local/lib/python3.6/dist-packages/azure_devtools/ci_tools/git_tools.py", line 81, in clone_to_path
    repo.git.checkout(branch_or_commit)
  File "/usr/local/lib/python3.6/dist-packages/git/cmd.py", line 548, in <lambda>
    return lambda *args, **kwargs: self._call_process(name, *args, **kwargs)
  File "/usr/local/lib/python3.6/dist-packages/git/cmd.py", line 1014, in _call_process
    return self.execute(call, **exec_kwargs)
  File "/usr/local/lib/python3.6/dist-packages/git/cmd.py", line 825, in execute
    raise GitCommandError(command, status, stderr_value, stdout_value)
git.exc.GitCommandError: Cmd('git') failed due to: exit code(128)
  cmdline: git checkout f88c260d04c6fad2d9080322d3164f621632a6d4
  stderr: 'fatal: reference is not a tree: f88c260d04c6fad2d9080322d3164f621632a6d4'

[lmazuel]

@AutorestCI regenerate azure-sdk-for-python

[jianghaolu]

Not related to this PR, but the link here is invalid - https://github.com/koralski/azure-rest-api-specs/blob/e3d9ca01eb41c555b03705a38e58173de2196194/specification/compute/resource-manager/Microsoft.Compute/stable/2018-04-01/examples/VirtualMachineRunCommandGet.json#L30.

Thought you might want to take a look.