Ran rsync.yo through yodl2man to produce rsync.1. I found that the string

"file(s)" in rsync.yo was being improperly translated by yodl2man so I
changed it to just "files".

rsync.yo

@@ -578,7 +578,7 @@ temporary destination until they have a chance to be completed.  If DIR is
 a relative path, it is relative to the destination directory.
 
 dit(bf(-z, --compress)) With this option, rsync compresses any data from
-the source file(s) which it sends to the destination machine.  This
+the files that it sends to the destination machine.  This
 option is useful on slow links.  The compression method used is the
 same method that gzip uses.