Support installing os-traits from git

This will be used in a src job for running os-traits changes
in a dsvm/tempest setup.

Change-Id: I3c4433fb1ca2787e96b577a15d584b625c364ef3
diff --git a/tests/test_libs_from_pypi.sh b/tests/test_libs_from_pypi.sh
index 608ef6a..1f2d3c2 100755
--- a/tests/test_libs_from_pypi.sh
+++ b/tests/test_libs_from_pypi.sh
@@ -39,7 +39,7 @@
 ALL_LIBS+=" python-openstackclient osc-lib os-client-config oslo.rootwrap"
 ALL_LIBS+=" oslo.i18n oslo.utils python-openstacksdk python-swiftclient"
 ALL_LIBS+=" python-neutronclient tooz ceilometermiddleware oslo.policy"
-ALL_LIBS+=" debtcollector os-brick automaton futurist oslo.service"
+ALL_LIBS+=" debtcollector os-brick os-traits automaton futurist oslo.service"
 ALL_LIBS+=" oslo.cache oslo.reports osprofiler cursive"
 ALL_LIBS+=" keystoneauth ironic-lib neutron-lib oslo.privsep"
 ALL_LIBS+=" diskimage-builder os-vif python-brick-cinderclient-ext"