fix in bin file

Author: cyber01

bin/wayback_machine_downloader

@@ -58,7 +58,7 @@ option_parser = OptionParser.new do |opts|
     options[:list] = true
   end
 
-  opts.on("-u", "--user-agent STRING", String, "UserAgent for connection (Default is WayBack Machine Downloader)") do |t|
+  opts.on("-u", "--user-agent STRING", String, "UserAgent for connection (Default is Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:80.0) Gecko/20100101 Firefox/80.0)") do |t|
     options[:user_agent] = t
   end