Only output number of uploading files if uploading

If I'm not uploading files to the watch, then the output of the script shouldn't mention uploading files at all. Previously the status line would print out "Downloading 2 file(s) and uploading 17 file(s)" when I was only downloading files. Now it reads "Downloading 2 file(s)" if I'm just downloading, which doesn't scare me into thinking I've accidentally enabled uploading each time I run the script!

Also removes some trailing whitespace.