- Optional "--shm-size=" was added to the sub-command(run, create,and build). - The size of /dev/shm in the container can be changed when container is made. - Being able to specify is a numerical value that applies number, b, k, m, and g. - The default value is 64MB, when this option is not set. - It deals with both native and lxc drivers. Signed-off-by: NIWA Hideyuki <niwa.hiedyuki@jp.fujitsu.com>