Bryan Boreham 5421c778ba labels: in tests use labels.FromStrings
Replacing code which assumes the internal structure of `Labels`.

Add a convenience function `EmptyLabels()` which is more efficient than
calling `New()`.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-09-09 13:34:49 +02:00
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