Revert "remove chroot when daemonizing (#640)"
Revert "remove chroot when daemonizing (#640)"

This reverts commit 862a8a78b74759636cb902d2196e5c988d6c8a79.

shadowsocks/shadowsocks-rust,shadowsocks/shadowsocks-rust,zonyitoo/shadowsocks-rust,shadowsocks/shadowsocks-rust,shadowsocks/shadowsocks-rust