Github user asfgit closed the pull request at:
https://github.com/apache/zeppelin/pull/1365
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GitHub user zjffdu opened a pull request:
https://github.com/apache/zeppelin/pull/1365
ZEPPELIN-1374. Should prevent use dot in interpreter name
### What is this PR for?
dot is invalid for interpreter name as it is used as the seprater of
interpreter group name and interpreter
