Attempt to prevent false positives in replication test.
Fix lua-cmsgpack 64 bit integer on 32 bit platform

This syncs lua-cmsgpack with the mattsta/lua-cmsgpack upstream.

Fixes #2161
Merge pull request #2162 from mattsta/fix/lua/cmsgpack/64-bit-integers-on-32-bit-platforms

Fix lua-cmsgpack 64 bit integer on 32 bit platform