Fix the functional-tips tox environment

The egg for the keystoneauth project is actually called keystonauth1.
Seems newer pip actually complains about the difference and fails.

Change-Id: I1602832d33cd467745a03b36c9b1545cd069ba1d

Author: jharbott

tox.ini

@@ -84,7 +84,7 @@ setenv = OS_TEST_PATH=./openstackclient/tests/functional
 passenv = OS_*
 commands =
     python -m pip install -q -U -e "git+file://{toxinidir}/../cliff#egg=cliff"
-    python -m pip install -q -U -e "git+file://{toxinidir}/../keystoneauth#egg=keystoneauth"
+    python -m pip install -q -U -e "git+file://{toxinidir}/../keystoneauth#egg=keystoneauth1"
     python -m pip install -q -U -e "git+file://{toxinidir}/../osc-lib#egg=osc_lib"
     python -m pip install -q -U -e "git+file://{toxinidir}/../openstacksdk#egg=openstacksdk"
     python -m pip freeze