Fix Cinder tls-proxy WSGI test

This currently will throw errors like:

lib/cinder: line 480: [True: command not found

Change-Id: I6bc08532cf99411f39d23523f9fc7851e7804131
diff --git a/lib/cinder b/lib/cinder
index 4274be7..03328f3 100644
--- a/lib/cinder
+++ b/lib/cinder
@@ -478,7 +478,7 @@
     local service_port=$CINDER_SERVICE_PORT
     local service_protocol=$CINDER_SERVICE_PROTOCOL
     local cinder_url
-    if is_service_enabled tls-proxy && ["$CINDER_USE_MOD_WSGI" == "False"]; then
+    if is_service_enabled tls-proxy && [ "$CINDER_USE_MOD_WSGI" == "False" ]; then
         service_port=$CINDER_SERVICE_PORT_INT
         service_protocol="http"
     fi