[Issue 15759] chunks should work with only an input range

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15759

--- Comment #4 from github-bugzilla at puremagic.com ---
Commit pushed to dmd-cxx at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/6826427ba55b9ae9a0f64f4489c359a851e08087
Fix issue 15759: Extend std.range.chunks to work with non-forward input ranges.

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