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

[via Digitalmars-d-bugs]

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

hsteoh at quickfur.ath.cx changed:

           What    |Removed                     |Added
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                 CC|                            |hsteoh at quickfur.ath.cx

--- Comment #3 from hsteoh at quickfur.ath.cx ---
Would this cause interop problems with C programs that use GNU gettext, which
conventionally defines '_' to be shorthand for 'gettext'?  (Not that I care
about such an ugly C hack, but you never know, somebody might care.)

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