Re: [PATCH] Bisect: add checks at the beginning of "git bisect run".

Christian Couder [off-list ref] writes:

Without the first "test -d blah", if "bisect start" was not already used, 
then the user will only see :

'You need to give me at least one good and one bad revisions.'

And then when using "git bisect good" or "git bisect bad" to give good or 
bad revision:

'You need to start by "git bisect start"
Do you want me to do it for you [Y/n]?'

Doesn't that suggest the existing messages from "git bisect good/bad"
can use the same improvement you added only to "bisect run"?