bugfix: deploy supervisor with password should expect EOF

Summary: Ref T615

Test Plan: N/A

Reviewers: yongxing

Reviewed By: yongxing

Maniphest Tasks: T615

Differential Revision: http://phabricator.n.miliao.com/D1608

git-svn-id: https://code.miliao.com/repos/xiaomi-miliao/trunk/src/cloud/infra/minos@115573 e1a62a3c-03e2-43f2-b1ff-b74bda9a2190