This makes "dotest" a lot nicer to sue, especially for people who were
used to editing the commit comments after-the-fact in BK, which git
doesn't apply.
he syntax is
dotest [-q] mailbox [signoff]
so the command line operates exactly as you're used to. If you supply
the -q it will query before applying (I also added the [a]pply all the
rest option). If the signoff file is absent, no signoff line gets
added.
There's also one addition in this: a checkout-cache line. I added that
for poor saps like me whose laptop takes minutes to checkout a full
build tree, so I can run dotest in a directory with no checked out
files.
My brain just flipped when it tried to read the "Applying" as part
of the explanation of the patch, and the sentence didn't make any
sense. The quotes make it clear what's going on.
