Minor refactoring

tests/test_readme.py

@@ -1,14 +1,10 @@
-from tests.utils import root
-
-
-def test_readme():
-    with root.joinpath('README.md').open() as f:
+def test_readme(source_root):
+    with source_root.joinpath('README.md').open() as f:
         readme = f.read()
 
-        bundled = root \
-            .joinpath('thefuck') \
-            .joinpath('rules') \
-            .glob('*.py')
+        bundled = source_root.joinpath('thefuck') \
+                             .joinpath('rules') \
+                             .glob('*.py')
 
         for rule in bundled:
             if rule.stem != '__init__':