[Issue 15972] range of chars doesn't work with joiner with literal delimiters

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15972

--- Comment #3 from anonymous4 <dfj1esp02 at sneakemail.com> ---
(In reply to Seb from comment #2)
> and no one seems to have found a good transition path so far.
I mean replace std.algorithm with undead.algorithm in sources.

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