STY: removed trailing white space

src/caosadvancedtools/import_from_xml.py

@@ -135,7 +135,7 @@ def defineParser():
     parser = argparse.ArgumentParser(description=__doc__)
     parser.add_argument("file", help='file to be imported')
     parser.add_argument("--rerun", help='if this script is run at least a'
-                        ' second time and files are already inserted', 
+                        ' second time and files are already inserted',
                         action="store_true")
 
     return parser