[Issue 18172] std.getopt should allow taking parameters by `ref` (like std.format.formattedRead), s.t. it can be used in @safe

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18172

--- Comment #6 from Jack Stouffer <jack at jackstouffer.com> ---
Created attachment 1683
  --> https://issues.dlang.org/attachment.cgi?id=1683&action=edit
getopt.patch

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