nsc is currently marked as broken on darwin because it's check phase
does not pass. However, it builds and works fine.
The check phase failure is due to a test in nsc stripping `-` from some
test output to remove some table formatting. This accidentally removes
`-` in a filesystem path and makes a test fail that expects the output
to contain a specific path.
This should be fixed upstream in nsc, but no need to mark darwin as
broken when it actually does build and work okay.
