instller fixed up  part of the svn_externals handling. made the printout of the generated file find_modified_code more useful by printing the full path.

git-svn-id: svn+ssh://civmxsrv2.duhs.duke.edu/Users/civmsvn/svn/repos/workstation_code/trunk@2167 d41079a3-eaa1-4f09-8506-b324c47726bb