linux-user: Do not report "Unsupported syscall" by default
This can still be reported using the "-d unimp" command line option.
Fixes: https://bugs.launchpad.net/qemu/+bug/
1777226
Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <
20180706155127.7483-2-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>