testutil: minor reformatting

diff --git a/src/allmydata/util/testutil.py b/src/allmydata/util/testutil.py
index 13e72911a6cafc564c6cdd715f3af8eb087ed27c..21edb8f66e728cc2270b4b859a19c89bf8cd5e7e 100644 (file)
--- a/src/allmydata/util/testutil.py
+++ b/src/allmydata/util/testutil.py
@@ -59,7 +59,8 @@ class PollMixin:
 
 class ShouldFailMixin:
 
-    def shouldFail(self, expected_failure, which, substring, callable, *args, **kwargs):
+    def shouldFail(self, expected_failure, which, substring,
+                   callable, *args, **kwargs):
         assert substring is None or isinstance(substring, str)
         d = defer.maybeDeferred(callable, *args, **kwargs)
         def done(res):