Inconsistent file generation across operating systems

[rachidlamouri]

The antlr4ts-cli tool can have different behavior on Windows and Ubuntu with the same cli command. I traced this issue back to the core antlr4 cli tool and there's an existing issue for it.

Since I discovered the issue through antlr4ts-cli I thought I would log an issue here for visibility.

Since the root cause is in the core cli tool feel free to close this issue.