Currently, the dry run setting causes the script to print out extremely
detailed information about the splitting it generated. While this is
sometimes useful, often users only care about the overall shape of the
splitting. This CL adds a flag which lets them see the same brief
summary that's printed during full runs.
Bug: 389069356
Change-Id: I473740e50f382e63b1289101f3253ff8ae9e6bbe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/6298096
Commit-Queue: Devon Loehr <dloehr@google.com>
Reviewed-by: Josip Sokcevic <sokcevic@chromium.org>