[PATCH en/and-cascade-tests 0/7] avoid repository access during "git <foo> -h"

Jonathan Nieder wrote:

[Subject: [PATCH en/and-cascade-tests 0/7] ]

Hmph, teaches me to send a series at night time.  The topic is
printing usage information early to avoid repository access during
"git <foo> -h".

Sorry, I should have prepared and sent that earlier.  Hope it
helps still.