Updates for version 0.4.2

New feature: Ability to edit disk images.
Several small bug fixes and feature enhancements (see CHANGELOG).
diff --git a/gptpart.cc b/gptpart.cc
index cb622d3..671e42e 100644
--- a/gptpart.cc
+++ b/gptpart.cc
@@ -68,6 +68,7 @@
    attributes = orig.attributes;
    for (i = 0; i < NAME_SIZE; i++)
       name[i] = orig.name[i];
+   return *this;
 } // assignment operator
 
 // Sets the unique GUID to a value of 0 or a random value,