If directory to scan is root ('/'), then be consistent and do not remove

the leading directory delimiter

generatecypher.py

@@ -488,7 +488,10 @@ def main(argv):
                 if args.verbose:
                     print(fullfilename)
 
-                relfullfilename = fullfilename[topdirlength:]
+                if dirtoscan == '/':
+                    relfullfilename = fullfilename
+                else:
+                    relfullfilename = fullfilename[topdirlength:]
                 if os.path.islink(fullfilename):
                     # keep checking whether or not a symlink can be resolved