git-bisect feature suggestion: "git-bisect diff"

[Ingo Molnar <mingo@elte.hu>]

would be nice to have:

 git-bisect diff

that enables one to have a look at the currently open bisection window, 
in git-log -p format. This would often be much faster to analyze than 
looking at git-bisect visualize. (and it could also be used in non-GUI 
workflows)

Right now i have this silly git-bisect-diff script:

git-log -p "`git-bisect log | grep good | tail -1 | cut -d' ' -f3`".."\
`git-bisect log | grep bad | tail -1 | cut -d' ' -f3`"

	Ingo