Fix pep8 error

Author: asvetlov

setup.py

@@ -47,7 +47,8 @@ def build_extension(self, ext):
 with codecs.open(os.path.join(os.path.abspath(os.path.dirname(
         __file__)), 'aiohttp', '__init__.py'), 'r', 'latin1') as fp:
     try:
-        version = re.findall(r"^__version__ = '([^']+)'\r?$", fp.read(), re.M)[0]
+        version = re.findall(r"^__version__ = '([^']+)'\r?$",
+                             fp.read(), re.M)[0]
     except IndexError:
         raise RuntimeError('Unable to determine version.')