spice-qemu-char.c: Use correct printf format char for ssize_t Use the correct printf format string character (%z) for ssize_t. This fixes a compile failure on 32 bit Linux with spice enabled. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>