rubocop: use Layout/TrailingWhitespace AllowInHeredoc true

git-svn-id: http://svn.redmine.org/redmine/trunk@18342 e93f8b46-1217-0410-a6f0-8f06a7374b81

.rubocop.yml

@@ -24,6 +24,9 @@ require:
 Layout/SpaceBeforeBlockBraces:
   Enabled: false
 
+Layout/TrailingWhitespace:
+  AllowInHeredoc: true
+
 Metrics:
   Enabled: false
 

.rubocop_todo.yml

@@ -542,12 +542,6 @@ Layout/TrailingBlankLines:
     - 'test/integration/api_test/my_test.rb'
     - 'test/unit/lib/redmine/hook_test.rb'
 
-# Cop supports --auto-correct.
-# Configuration parameters: AllowInHeredoc.
-Layout/TrailingWhitespace:
-  Exclude:
-    - 'test/unit/lib/redmine/unified_diff_test.rb'
-
 Lint/AmbiguousBlockAssociation:
   Enabled: false