[Issue 13325] __vector not documented in language specification

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13325

--- Comment #3 from Kenji Hara <k.hara.pg at gmail.com> ---
Supplemental fix:
https://github.com/D-Programming-Language/dlang.org/pull/782

--