[Libguestfs] [PATCH 0/2] (mainly for discussion) Add ‘return’ statement.

When rewriting the heavily imperative original inspection code, I longed for a ‘return’ statement so I could keep the new code as close as possible to the original. OCaml of course does not have such a statement, but it's relatively simply to implement it in the language. The first patch does so, and the second patch rewrites a sample of the inspection code to use it. Rich.