[ARROW-5472] [Development] Add warning to PR merge tool if no JIRA component is set

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Component/s: Developer Tools
• External issue URL: https://github.com/apache/arrow/issues/21922
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 31/May/19 18:11
• Updated: 11/Jan/23 07:40
• Resolved: 14/Jun/19 20:08

Description

This will help with JIRA hygiene (there are over 300 resolved issues this moment with no component set)