git-review: hide read-only git commands from -v; show them with -v -v

Right now all the "gather information about what's going on" git commands
show up with the -v flag. If you are using the -v flag to learn what the
basic review operations do, all those state-gathering commands are noise,
and they make it hard to find the state-modifying commands.
Hide the state-gathering (read-only) commands with -v.
Make -v repeatable and show them with -v -v.

	$ git sync -v
	git fetch -q
	git merge -q --ff-only origin/master

	$ git sync -v -v
	git fetch -q
	git rev-parse --abbrev-ref HEAD
	git rev-parse flags
	git merge-base origin/master flags
	git merge -q --ff-only origin/master

Change-Id: Iea28b4a4302bea614c3f542b491f0b302b378110
Reviewed-on: https://go-review.googlesource.com/1425
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
1 file changed
tree: 33c19096075264e96fb8167fbc5dce801c1d8f66
  1. README
  2. git-review/