Rubocop cleanup

Author: tom-lord

lib/regexp-examples/helpers.rb

@@ -10,10 +10,13 @@ module RegexpExamples
   # Edge case:
   # permutations_of_strings [ [] ] #=> nil
   # (For example, ths occurs during /[^\d\D]/.examples #=> [])
-  def self.permutations_of_strings(arrays_of_strings, max_results_limiter = MaxResultsLimiterByProduct.new)
+  def self.permutations_of_strings(arrays_of_strings,
+                                   max_results_limiter = MaxResultsLimiterByProduct.new)
     partial_result = max_results_limiter.limit_results(arrays_of_strings.shift)
     return partial_result if arrays_of_strings.empty?
-    partial_result.product(permutations_of_strings(arrays_of_strings, max_results_limiter)).map do |result|
+    partial_result.product(
+      permutations_of_strings(arrays_of_strings, max_results_limiter)
+    ).map do |result|
       join_preserving_capture_groups(result)
     end
   end