tests/test-race.out

tags: return tags in sorted order

This makes log and summary have less arbitrary tag ordering and also
groups similar tags together, such as the mq tags.

M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a
M a