Merge pull request #496 from KhronosGroup/mkinsner-missing-word-1

Fix missing word

adoc/chapters/programming_interface.adoc

@@ -5598,7 +5598,7 @@ void set_final_data(Destination finalData = nullptr)
       the image processing is going to be copied to at destruction
       time, if the image was involved with a write accessor.
 
-Destination can be either an output iterator, a
+Destination can be either an output iterator, or a
 [code]#std::weak_ptr<T>#.
 
 Note that a raw pointer is a special case of output iterator and