[Issue 6989] Implement toString for std.concurrency.Tid

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=6989

--- Comment #7 from github-bugzilla at puremagic.com ---
Commit pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/69d1348952c9fe56a1d567bfb54ab3138e76a5eb
Merge pull request #2772 from quickfur/pr6989_rebase

Rebase of PR 2482: Issue 6989 - create a better string representation of Tid

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