Don't treat sphinx warning as error in testenv:docs-travis
Closes
@@ -44,7 +44,7 @@ deps = sphinx
backports.ssl_match_hostname
changedir = docs
commands = python ../contrib/generate_provider_feature_matrix_table.py
- sphinx-build -W -b html -d {envtmpdir}/doctrees . _build/html
+ sphinx-build -b html -d {envtmpdir}/doctrees . _build/html
[testenv:scrape-ec2-prices]
deps = requests
