dit(bf(--size-only)) This modifies rsync's "quick check" algorithm for
finding files that need to be transferred, changing it from the default of
transferring files with either a changed size or a changed last-modified
-time to just transferring files that have a changed size. This is useful
+time to just looking for files that have changed in size. This is useful
when starting to use rsync after using another mirroring system which may
not preserve timestamps exactly.