removing os-specific files from sphinx autodoc

Author: wolph

tox.ini

@@ -46,7 +46,7 @@ whitelist_externals =
 commands =
     rm -f docs/modules.rst
     mkdir -p docs/_static
-    sphinx-apidoc -e -o docs/ progressbar os_specific
+    sphinx-apidoc -e -o docs/ progressbar */os_specific/*
     rm -f docs/modules.rst
     sphinx-build -b html -d docs/_build/doctrees docs docs/_build/html {posargs}