205ebd8d30
This fix fixes issue raised in 29492 where it was not possible to specify a default `--default-shm-size` in daemon configuration for each `docker run``. The flag `--default-shm-size` which is reloadable, has been added to the daemon configuation. Related docs has been updated. This fix fixes 29492. Signed-off-by: Yong Tang <yong.tang.github@outlook.com>