Merge pull request #2242 from ksss/style

Enable unchanged style in the current RBS

Author: soutaro

.rubocop.yml

@@ -44,10 +44,18 @@ RBS/Style:
   Exclude:
     - 'sig/**/*'
     - 'test/**/*'
+RBS/Style/BlockReturnBoolish:
+  Enabled: true
+RBS/Style/DuplicatedType:
+  Enabled: true
 RBS/Style/EmptyArgument:
   Enabled: true
 RBS/Style/InitializeReturnType:
   Enabled: true
+RBS/Style/OptionalNil:
+  Enabled: true
+RBS/Style/RedundantParentheses:
+  Enabled: true
 
 Lint/DuplicateMethods:
   Enabled: true