Log Message:
samurai: update to 1.2

## New features

- Subtools `list`, `query`, and `commands` are now implemented.
- Dry-run execution is now supported (`-n` flag).
- The `%o` specifier is now supported in `NINJA_STATUS`, used to
  display the average rate of finished jobs.

## Bug fixes

- Fix version comparison when checking `ninja_required_version`
  with a version that has multiple digits in some component.

## Other changes

- Work around POSIX.1-2008 conformance issue on SunOS-based operating
  systems.