[Issue 20910] Default unittest runner reports wrong unittest count

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20910

hsteoh at quickfur.ath.cx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Unittest runner reports     |Default unittest runner
                   |wrong unittest count        |reports wrong unittest
                   |                            |count

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