def report_duplicates(dict1, dict2)
      duplicates = dict1 & dict2
      return if duplicates.empty?

      $stderr.puts "Warning: Found dictionary duplicates in the local dictionary " \
        "(#{CUSTOM_SPELL_CONFIG_FILE}):\n"
      duplicates.each { |duplicate| $stderr.puts "  #{duplicate}" }
      $stderr.puts
    end
def report_duplicates(dict1, dict2)
      duplicates = dict1 & dict2
      return if duplicates.empty?

      $stderr.puts "Warning: Found dictionary duplicates in the local dictionary " \
        "(#{CUSTOM_SPELL_CONFIG_FILE}):\n"
      duplicates.each { |duplicate| $stderr.puts "  #{duplicate}" }
      $stderr.puts
    end
print the duplicate dictionary entries
 @param dict1 [Array<String>] the first dictionary
 @param dict2 [Array<String>] the second dictionary