DO NOT add the handles of adjust winsize when the 'stdin' is not a tty
DO NOT add the handles of adjust winsize when the 'stdin' is not a tty

Signed-off-by: Li Feng <4832fed3a0f49ff12dc827462dc62b36e7f40777@huawei.com>

caglar10ur/lxc,thmo/lxc,ss1h2a3tw/lxc,federicobriata/lxc,thmo/lxc,aeris/lxc,aeris/lxc,thmo/lxc,hallyn/lxc,LynxChaus/lxc,terceiro/lxc,aeris/lxc,ss1h2a3tw/lxc,LynxChaus/lxc,terceiro/lxc,federicobriata/lxc,terceiro/lxc,caglar10ur/lxc,caglar10ur/lxc,hallyn/lxc,LynxChaus/lxc,ss1h2a3tw/lxc,federicobriata/lxc,hallyn/lxc