Fix printing size_t and off_t value for LLP64 Windows.
* src/debug.h (_trace_sysres_off_t): Use 'z' length specifier. * src/w32-io.c (_gpgme_io_read): Likewise. (writer, _gpgme_io_write): Likewise.
- GnuPG-bug-id: T7187
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>