License headers in source files is wrong

[sophiajt]

• Package Name:

All

Describe the bug
We currently state the phrase in our code, including auto-generated code:

// Licensed under the MIT License. See License.txt in the project root for license information.

But this is not where the license file is. It's called "LICENSE", and the header comments should be changed to reflect this.

[bterlson]

We have a list of officially blessed copyright headers for various languages here (Microsoft Internal, sorry).

Also, the LICENSE.md file must be included in the package. I'll update the guidelines to be more clear about this.

[sophiajt]

Reposting here for those who do not have access:

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

[ramya-rao-a]

I believe with latest efforts on enabling the eslint plugin v3 on all our packages, we have the below copyright in the non auto generated files

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.

@joheredi Does the code generator have a default copyright text to use or relies on the user to provide one? If it has its own, then we should update it to use the above text

[joheredi]

It has a default value if nothing is provided

/*
 * Code generated by Microsoft (R) AutoRest Code Generator.
 * Changes may cause incorrect behavior and will be lost if the code is regenerated.
 */

Autorest also comes with a few canned license headers that users can use by name --license-header=HEADER_NAME, this repo mostly uses MICROSOFT_MIT_NO_VERSION which produces

/*
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License. See License.txt in the project root for
 * license information.
 *
 * Code generated by Microsoft (R) AutoRest Code Generator.
 * Changes may cause incorrect behavior and will be lost if the code is
 * regenerated.
 */

I can modify MICROSOFT_MIT_NO_VERSION to produce:

/*
 * Copyright (c) Microsoft Corporation.
 * Licensed under the MIT License.
 *
 * Code generated by Microsoft (R) AutoRest Code Generator.
 * Changes may cause incorrect behavior and will be lost if the code is
 * regenerated.
 */

[ramya-rao-a]

Thanks @joheredi

Logged Azure/autorest.typescript#677