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                        [CDAP-15407] When a wrong directive is typed in CDAP/Wrangler no error message is displayed to user.
…ng directive or there is a syntax error in the directive typed
- [x] Merge to release/4.2
 - [x] Updated JIRA with test results (CDAP-15407)
 - [x] Locally tested.
 
@albertshau PTAL.
@albertshau PTAL.