Merge pull request #1369 from masato-bkn/fix-rails-save-bang-test

Fix test cases for `*` and `**` arguments in `Rails/SaveBang`

Author: koic

spec/rubocop/cop/rails/save_bang_spec.rb

@@ -47,12 +47,12 @@
         RUBY
       else
         expect_offense(<<~RUBY, method: method)
-          object.#{method}(variable)
+          object.#{method}(*variable)
                  ^{method} Use `#{method}!` instead of `#{method}` if the return value is not checked.
         RUBY
 
         expect_correction(<<~RUBY)
-          object.#{method}!(variable)
+          object.#{method}!(*variable)
         RUBY
       end
     end
@@ -64,12 +64,12 @@
         RUBY
       else
         expect_offense(<<~RUBY, method: method)
-          object.#{method}(variable)
+          object.#{method}(**variable)
                  ^{method} Use `#{method}!` instead of `#{method}` if the return value is not checked.
         RUBY
 
         expect_correction(<<~RUBY)
-          object.#{method}!(variable)
+          object.#{method}!(**variable)
         RUBY
       end
     end