[ingvarch]

What changes

The tests that count the allocations of a new log line failed now and then in CI: TestText_ANewLineCostsTheSameHoweverLongTheText failed on macOS in #179 with 1177 allocations against at most 1176, on a branch that changes no Go code.

CI runs the tests only with -race, and the race detector drops what sync.Pool is given at random (sync/pool.go, Put), so code that takes from a pool allocates a different number of times on each run. Locally under -race the difference between a short and a long text went from -11 to +2 over eight runs; without it both counts are 1096 every time.

• The two tests skip under the race detector (raceOn, from a pair of files with the race build tag).
• The check job in CI runs go test ./... without the race detector, after a lint failure too, so the counts are still checked on every push. make check already ran them that way.
• A test on the workflow keeps that run in place.

Checklist

• The test for this change was written first and failed
• make check is green
• The title is a conventional commit: feat(ui): ..., fix(nomad): ...