Re: [PATCH] warn use of "git diff A..B"

> Junio C Hamano <gitster@pobox.com> writes:
> 
>> "git diff" (and "diff-tree") accepts a range notation "A..B" from the
>> command line to specify the two endpoints to be compared; the right way to
>> spell this would be "git diff A B".  This is merely a historical accident
>> that comes from the fact that "git log" family of commands and "git diff"
>> happens to share some code in their command line parsers.
> 
> I think it is quite useful to acept this notation to allow for
> copy'n'paste from e.g. "git fetch" output:
> 
>      5e839c8..cd3065f  master     -> origin
> 
> On can simply paste "git diff 5e839c8..cd3065f".
>                               ^^^^^^^^^^^^^^^^