Mixed Ascii doc grammar for code highlighting.

[iamkyu]

Describe the bug
Two grammar are mixed for code highlighting that I checked.
Example.

1. [src,Java]
2. [source,java, indent=0]

I think the first one doesn’t work.
Is there a reason why it is being used this?

Sample
in spring-cloud-contract/getting-started.adoc at main · spring-cloud/spring-cloud-contract · GitHub

public class BaseTestClass
Highlight not working with [src,Java]

public class LoanApplicationServiceTests
Highlight working with [source,java, indent=0]

[marcingrzejszczak]

I guess that's a mistake, are you willing to file a PR to the 3.1.x branch?

[iamkyu]

@marcingrzejszczak ok, i will

[marcingrzejszczak]

Fixed via #1820