messaging4: Fix types

messaging4: Fix types

According to python docs, PyArg_ParseTuple takes "int" and "unsigned
long long". With pointers down to functions, in particular with
varargs, there is no automatic conversion. So we need to be very
strict about types. Automatic conversion to for example uint64_t
happes only with assignment.

This fixes a crash on FreeBSD10/clang.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Böhme <rb@sernet.de>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Nov 27 21:32:18 CET 2014 on sn-devel-104