Add lxml to requirements.txt
In splitting the tempest plugin code out from the keystone repository we
copied over everything from the keystone_tempest_plugin/ directory but
forgot to copy the shared requirements living in the main repo. This
patch adds the lxml library to the plugin's requirements so that the
plugin can check SAML things.
Change-Id: I47f59505126509b6b52cf04b8f7501e8ef4041b7
diff --git a/requirements.txt b/requirements.txt
index 1d18dd3..485ba11 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,6 @@
# process, which may cause wedges in the gate later.
pbr>=2.0 # Apache-2.0
+
+# xml parsing
+lxml!=3.7.0,>=2.3 # BSD