HIVE-2531 [hive] Allow people to use only issue numbers without 'HIVE-' prefix with `arc diff --jira`.
HIVE-2531 [hive] Allow people to use only issue numbers without 'HIVE-' prefix
with `arc diff --jira`.

Test Plan: EMPTY

Reviewers: jsichi, JIRA

Reviewed By: jsichi

CC: jsichi, mareksapotafb

Differential Revision: 93

git-svn-id: c2303eb81cb646bce052f55f7f0d14f181a5956c@1190567 13f79535-47bb-0310-9956-ffa450edef68

vergilchiu/hive,b-slim/hive,vergilchiu/hive,sankarh/hive,vineetgarg02/hive,alanfgates/hive,b-slim/hive,vineetgarg02/hive,nishantmonu51/hive,sankarh/hive,vergilchiu/hive,anishek/hive,lirui-apache/hive,anishek/hive,lirui-apache/hive,anishek/hive,anishek/hive,vergilchiu/hive,vergilchiu/hive,alanfgates/hive,anishek/hive,nishantmonu51/hive,nishantmonu51/hive,vineetgarg02/hive,jcamachor/hive,vineetgarg02/hive,vineetgarg02/hive,b-slim/hive,b-slim/hive,alanfgates/hive,jcamachor/hive,lirui-apache/hive,anishek/hive,alanfgates/hive,vergilchiu/hive,vineetgarg02/hive,lirui-apache/hive,alanfgates/hive,nishantmonu51/hive,sankarh/hive,nishantmonu51/hive,nishantmonu51/hive,anishek/hive,alanfgates/hive,lirui-apache/hive,alanfgates/hive,jcamachor/hive,alanfgates/hive,lirui-apache/hive,jcamachor/hive,anishek/hive,vergilchiu/hive,vineetgarg02/hive,b-slim/hive,vineetgarg02/hive,sankarh/hive,alanfgates/hive,jcamachor/hive,lirui-apache/hive,sankarh/hive,sankarh/hive,nishantmonu51/hive,b-slim/hive,jcamachor/hive,vergilchiu/hive,b-slim/hive,jcamachor/hive,jcamachor/hive,lirui-apache/hive,anishek/hive,vergilchiu/hive,vineetgarg02/hive,nishantmonu51/hive,b-slim/hive,sankarh/hive,sankarh/hive,lirui-apache/hive,sankarh/hive,jcamachor/hive,nishantmonu51/hive,b-slim/hive