Fix to force ConfigParser to correctly parse extra requirements

Refs python-poetry/poetry#2144 (comment)

Author: zupo

setup.cfg

@@ -46,7 +46,8 @@ exclude =
     tests
 
 [options.extras_require]
-django = django>=2.2; python_version>="3.0"
+django = 
+    django>=2.2; python_version>="3.0"
 flask = flask
 requests = requests