.coveragerc: use a single source, but includes (pytest-dev#532)

blueyed · timb07 · commit 75ccfd50c19f · 2018-05-26T14:30:21.000+02:00
This makes it easier for Codecov to parse it.
diff --git a/.coveragerc b/.coveragerc
@@ -1,4 +1,5 @@
 [run]
 parallel = true
-source = pytest_django,pytest_django_test,tests
+source = .
+include = pytest_django/*,pytest_django_test/*,tests/*
 branch = true
