Fix pytest options.

Author: ionelmc

setup.cfg

@@ -21,12 +21,12 @@ python_files =
 addopts =
     -rxEfs
     --strict
-    --ignore docs/conf.py
-    --ignore setup.py
-    --ignore bootstrap.py
+    --ignore=docs/conf.py
+    --ignore=ci
+    --ignore=setup.py
     --doctest-modules
-    --doctest-glob \*.rst
-    --tb short
+    --doctest-glob=\*.rst
+    --tb=short
 markers =
     xfail_subclass: Expected test to fail with a subclass of Proxy.
     xfail_simple: Expected test to fail on the `simple` implementation.