Fix identity max session description
Resolves
<globalConfig xmlns="http://zstack.org/schema/zstack">
<config>
<name>session.maxConcurrent</name>
- <description>Max number of sessions management server accepts. When this limit met, new session will be rejected</description>
+ <description>Max number of sessions management server accepts for every user. When this limit met, new session will be rejected</description>
<defaultValue>500</defaultValue>
<category>identity</category>
<type>java.lang.Integer</type>
