Fix command timing regression that reported ~0s for serially executed commands.
0.20.2
Fix redundant step prefixes for bare commands.
0.20.1
Fix up parallel step indication and timing rollups.
0.20.0
Add support for task timing rollups and fix a bug in `accepts-extra-args` handling when there are multiple `accepts-extra-args` commands in a run, but they all resolve to the same command.
0.19.1
Fix times reported via `-t` / `--timings` to have a consistent format with the overall run time.
0.19.0
Add support for emitting detailed timings with `-t` / `--timings`.