ext/swig_vpi.i in ruby-vpi-18.0.2 vs ext/swig_vpi.i in ruby-vpi-19.0.0

@@ -1,13 +1,17 @@
-%module vpi
+%module VPI
 
 /* Parse the header file to generate wrappers */
 %{
 #include "swig_vpi.h"
 %}
 %include "swig_vpi.h"
 
-/* allows us to set S_cb_data.cb_rtn = Vpi::Vlog_relay_ruby in Ruby */
+/* Allows us set the VPI callback handler in Ruby:
+
+    data        = S_cb_data.new
+    data.cb_rtn = VPI::Vlog_relay_ruby
+*/
 %{
 #include "vlog.h"
 %}
 %constant PLI_INT32 vlog_relay_ruby(struct t_cb_data *);