Minor cleanup based on pyflakes feedback

- Legacy-Id: 188

ietf/utils/__init__.py

@@ -4,3 +4,11 @@ from cache_foreign_key import FKAsOneToOne
 from templated_form import makeTemplatedForm
 
 makeFormattingForm = makeTemplatedForm
+
+__all__ = ["orl", "flattenl", "log", "FKAsOneToOne", "makeTemplatedForm", "makeFormattingForm"]
+
+# See http://docs.python.org/tut/node8.html regarding the use of __all__ and
+# also regarding the practice of using "from xxx import *" in interactive
+# sessions vs. in source files.
+
+