Fix array parser

Author: jimmynguyc

lib/annotate/parser.rb

@@ -54,7 +54,6 @@ def add_options_to_parser(option_parser) # rubocop:disable Metrics/MethodLength,
       option_parser.banner = 'Usage: annotate [options] [model_file]*'
 
       option_parser.on('--additional-file-patterns path1,path2,path3',
-                       Array,
                        "Additional file paths or globs to annotate, separated by commas (e.g. `/foo/bar/%model_name%/*.rb,/baz/%model_name%.rb`)") do |additional_file_patterns|
         ENV['additional_file_patterns'] = additional_file_patterns
       end