[Issue 13121] std.algorithm.joiner should return a bidirectional range if possible

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=13121

--- Comment #2 from github-bugzilla at puremagic.com ---
Commits pushed to master at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/e34f420ff1e52860772e2532fc73dcf6f8d47eb9
Fix Issue 13121 - std.algorithm.joiner should return a bidirectional range if
possible

https://github.com/dlang/phobos/commit/f67c43d93de14fd888387d8d33c862d522e0b8ec
Merge pull request #6115 from wilzbach/13121

Issue 13121 - std.algorithm.joiner should return a bidirectional range if
possible

--