If there are less than two owners for the given paths,
current implementation will get stuck in infinite loop.

Change it to return any possible owner.

Change-Id: I75f18e0a00057c58d227dac23dc8572f1fba23f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2572802
Auto-Submit: Edward Lesmes <ehmaldonado@chromium.org>
Commit-Queue: Josip Sokcevic <sokcevic@google.com>
Reviewed-by: Josip Sokcevic <sokcevic@google.com>