The file should be owned by the user(STACK_USER) to run the process.
Note that STACK_USER may not match the current user in case stack.sh is
run by root.
Also we should not assume that the group name always matches the user
name.
Change-Id: Iec300311cab1b1a2fa124879aa3dc6a57a6a706b
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>
c11b16b44d