ivi-shell: ivi-shell, > wl_resource_post_error uses printf-format
arguments, and passing a
> non-constant string as the format string (here 'msg' argument) is
> considered
> a security hazard, which is why compilers warn about it.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>