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f92f048528
Locale modifier @cjkwide makes Unicode "ambiguous width" characters wide. So ambiguous width characters can be enforced to have width 2 even in non-CJK locales. This gives e.g. users of "Powerline symbols" the opportunity to adjust their width to the desired behaviour (and the behaviour apparently expected by some tools) without having to set a CJK locale and without losing consistence of terminal character width with wcwidth/wcswidth locale width.