Improved the talk of --hard-link improvements.

NEWS

@@ -55,11 +55,12 @@ Changes since 2.6.9:
       receiving side for all protocol versions.  For protocol 30, the use
       of a hashtable on the sending side allows us to more efficiently
       convey to the receiver what files are linked together.  This reduces
-      the amount of data sent over the socket by a considerable margin, and
-      moves the in-memory storage of the device+inode information from the
-      receiving side (for protocols < 30) to the sending side (note that
-      older rsync versions kept the device+inode information on both
-      sides).
+      the amount of data sent over the socket by a considerable margin
+      (rather than adding more data), and limits the in-memory storage of
+      the device+inode information to just the sending side for the new
+      protocol 30, or to the receiving side when speaking an older protocol
+      (note that older rsync versions kept the device+inode information on
+      both sides).
 
   INTERNAL: