Document --max-size.

rsync.yo

@@ -345,6 +345,7 @@ verb(
      --delete-after          receiver deletes after transfer, not before
      --ignore-errors         delete even if there are I/O errors
      --max-delete=NUM        don't delete more than NUM files
+     --max-size=SIZE         don't transfer any file larger than SIZE
      --partial               keep partially transferred files
      --partial-dir=DIR       put a partially transferred file into DIR
      --force                 force deletion of dirs even if not empty
@@ -635,6 +636,11 @@ dit(bf(--max-delete=NUM)) This tells rsync not to delete more than NUM
 files or directories. This is useful when mirroring very large trees
 to prevent disasters.
 
+dit(bf(--max-size=SIZE)) This tells rsync to avoid transferring any
+file that is larger than the specified SIZE. The SIZE value can be
+suffixed with a letter to indicate a size multiplier (K, M, or G) and
+may be a fractional value (e.g. "--max-size=1.5m").
+
 dit(bf(--delete)) This tells rsync to delete any files on the receiving
 side that aren't on the sending side.   Files that are excluded from
 transfer are excluded from being deleted unless you use --delete-excluded.