[Issue 10828] datetime toString functions should accept sink

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=10828

--- Comment #4 from monarchdodra at gmail.com ---
(In reply to Jonathan M Davis from comment #3)
> Regardless of whether this fixes that particular user's problem, it's
> certainly the case that there should be to*String overloads in std.datetime
> which take sinks, because that's what we should be doing with all toString
> functions.

@jmdavis: Are you still working on the re-packaging of datetime? What's the
status on that?

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