Fix comment of signalAllProcesses for process wait due to sigkill
Fix comment of signalAllProcesses for process wait due to sigkill

Signed-off-by: Walt Chen <ea2e35ee20eb97351c91a37a0e82b72d73d8a715@gmail.com>

opencontainers/runc,opencontainers/runc,opencontainers/runc,opencontainers/runc