[Issue 13522] Let's use '_' underscore as official ignore value

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13522

Ketmar Dark <ketmar at ketmar.no-ip.org> changed:

           What    |Removed                     |Added
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                 CC|                            |ketmar at ketmar.no-ip.org

--- Comment #4 from Ketmar Dark <ketmar at ketmar.no-ip.org> ---
it shouldn't, but we can use two underscores for that. ids started with two
underscores are reserved anyway.

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