Fix deprecated params user_id, role_id, tenant_id

Update keystone cli by changing parameter options (user_id, role_id and tenant_id)
to use '-' rather than '_' in the method user_role_add and consequently the method
user_role_remove without maintain backward compatibility because these are deprecated.

python-keystoneclient - Bug #1150434
Change-Id: Ia5113718eb050cf7dba443b8d0caf3bdaa1730f0
diff --git a/lib/keystone b/lib/keystone
index 0a35dd5..535710f 100644
--- a/lib/keystone
+++ b/lib/keystone
@@ -217,9 +217,9 @@
         --name admin \
         | grep " id " | get_field 2)
     keystone user-role-add \
-        --user_id $ADMIN_USER \
-        --role_id $ADMIN_ROLE \
-        --tenant_id $ADMIN_TENANT
+        --user-id $ADMIN_USER \
+        --role-id $ADMIN_ROLE \
+        --tenant-id $ADMIN_TENANT
 
     # service
     SERVICE_TENANT=$(keystone tenant-create \
@@ -244,10 +244,10 @@
         --pass "$ADMIN_PASSWORD" \
         --email demo@example.com \
         | grep " id " | get_field 2)
-    keystone user-role-add --user_id $DEMO_USER --role_id $MEMBER_ROLE --tenant_id $DEMO_TENANT
-    keystone user-role-add --user_id $ADMIN_USER --role_id $ADMIN_ROLE --tenant_id $DEMO_TENANT
-    keystone user-role-add --user_id $DEMO_USER --role_id $ANOTHER_ROLE --tenant_id $DEMO_TENANT
-    keystone user-role-add --user_id $DEMO_USER --role_id $MEMBER_ROLE --tenant_id $INVIS_TENANT
+    keystone user-role-add --user-id $DEMO_USER --role-id $MEMBER_ROLE --tenant-id $DEMO_TENANT
+    keystone user-role-add --user-id $ADMIN_USER --role-id $ADMIN_ROLE --tenant-id $DEMO_TENANT
+    keystone user-role-add --user-id $DEMO_USER --role-id $ANOTHER_ROLE --tenant-id $DEMO_TENANT
+    keystone user-role-add --user-id $DEMO_USER --role-id $MEMBER_ROLE --tenant-id $INVIS_TENANT
 
     # Keystone
     if [[ "$KEYSTONE_CATALOG_BACKEND" = 'sql' ]]; then