alias globally

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Earlier

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Start printing nice usage.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Clarify

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Allow us to get passed this for hook-specific args

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Nicer error message.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>