Chen db4fd9a5f0 Fix help text in server-group-create
Only one policy is allowed in server-group-create.

Change-Id: Id9cb6f96a5f8bcece1bcda88a97c6fb5f8a58bba
Related-Bug: #1767287
2018-06-22 11:07:20 +08:00
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2018-06-22 11:07:20 +08:00