document how to overwrite the debug settings
diff --git a/openrc b/openrc
index dd04730..4f953de 100644
--- a/openrc
+++ b/openrc
@@ -38,4 +38,4 @@
 export NOVA_REGION_NAME=${NOVA_REGION_NAME:-RegionOne}
 
 # set log level to DEBUG (helps debug issues)
-export NOVACLIENT_DEBUG=${NOVACLIENT_DEBUG:-0}
+# export NOVACLIENT_DEBUG=1