Remove use of backquoting so sync works consistently

While using this script on Fedora 20 I ran into issues with getting sync to work.  It appeared that the list created wasn't consumable by the for loop.  Not knowing Linux shell very well I experimented and looked things up.  The fix I have here allows me to use svm.  Thanks for providing this... much needed because I don't always want to author an SBT file just to get Scala.