Fixes extra 'file' that was leftover locally after import

cms/djangoapps/contentstore/views/import_export.py

@@ -60,7 +60,7 @@ def import_course(request, org, course, name):
         `filename` is truncted on creation. Additionally removes dirname on
         exit.
         """
-        open("file", "w").close()
+        open(filename, "w").close()
         try:
             yield filename
         finally:
@@ -90,7 +90,7 @@ def import_course(request, org, course, name):
         try:
             matches = CONTENT_RE.search(request.META["HTTP_CONTENT_RANGE"])
             content_range = matches.groupdict()
-        except KeyError:    # Single chunk 
+        except KeyError:    # Single chunk
             # no Content-Range header, so make one that will work
             content_range = {'start': 0, 'stop': 1, 'end': 2}