Fix unwrapping of captured PrintStream in test support's OutputCapture #22214
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this should not be like this. I guess you made a mistake here.
if you really get the original work flow, you should use
ifinsteadofwhile.Warning: this fix might be WRONG, so take good care about it.
If your original codes be a typo, and what I fix now is the function you want, that is OK.
But if the original codes works exactly what you want, then you should change
whiletoifeither of the two fixes should happen.