function_template.hpp:

  - Make functionN<void, ...> really have a void return value


[SVN r12613]

libs/function

@@ -1 +1 @@
-Subproject commit 7b0f465f33ad39088dbf086ec247045f9681cf29
+Subproject commit 4b430a54141a1ad48e655a9dd70c123ee0a9c68d