Backport !6251 (merged) to 16.3
(cherry picked from commit 5649e8da)
f05c9a2b praefect: Assert more track-repositories output 02c2260a praefect: Rename 'repository' to 'relative-path' 6efd1c0c praefect: Use replica paths in track-repository bfbb8f66 praefect: Use replica paths in track-repositories