[ZEPPELIN-4553] Use KERBEROS_REFRESH_INTERVAL in docs

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Resolved
• Affects Version/s: 0.8.0, 0.8.1, 0.8.2
• Component/s: documentation
• Assignee: Unassigned
• Reporter: Bob
• Created: 14/Jan/20 07:44
• Updated: 04/Mar/20 15:06
• Resolved: 04/Mar/20 15:06

Description

In the PR https://github.com/apache/zeppelin/pull/2443/files the ENV LAUNCH_KERBEROS_REFRESH_INTERVAL was renamed to KERBEROS_REFRESH_INTERVAL

The old ENV name is still used in the shell documentation