[Ocaml-lib-devel] Some small bug fixes to extlib

[Robert A. <bob...@ed...>]

Hello,

We've found some tiny bugs in extlib-1.5:

- off by one error in IO.ml for writing 16 bit integers
- off by one error in unzip.ml in reading of uncompressed blocks
- fix possible under-reading in unzip.ml

Patch attached.

Bob