Make the generate script use the same rubocop config as the repo

Author: meatball133

exercises/practice/acronym/acronym_test.rb

@@ -30,7 +30,7 @@ def test_punctuation_without_whitespace
   def test_very_long_abbreviation
     skip
     assert_equal 'ROTFLSHTMDCOALM',
-                 Acronym.abbreviate('Rolling On The Floor Laughing So Hard That My Dogs Came Over And Licked Me')
+      Acronym.abbreviate('Rolling On The Floor Laughing So Hard That My Dogs Came Over And Licked Me')
   end
 
   def test_consecutive_delimiters

generatorv2/lib/generator.rb

@@ -25,7 +25,7 @@ def generate(result_path = "./exercises/practice/#{@exercise}/#{@exercise}_test.
 
     File.write(result_path, result)
     cli = RuboCop::CLI.new
-    cli.run(['-x', "--force-default-config", "-o", "/dev/null", result_path])
+    cli.run(['-x', "-c", ".rubocop.yml", "-o", "/dev/null", result_path])
   end
 
   def underscore(str)