Land #2096 - Be able to show advanced options in msfvenom

msfvenom

@@ -97,6 +97,10 @@ def parse_args
 		opts[:list_options] = true
 	end
 
+	opt.on('-d', '--advance', 'List the payload\'s advance options') do
+		opts[:list_advance] = true
+	end
+
 	opt.on_tail('-h', '--help', 'Show this message') do
 		$stderr.puts opt
 		exit(1)
@@ -338,6 +342,11 @@ if opts[:list_options]
     exit
 end
 
+if opts[:list_advance]
+    puts Msf::Serializer::ReadableText.dump_advanced_options(payload)
+    exit
+end
+
 if payload_raw.nil? or payload_raw.empty?
 	begin
 		payload_raw = payload.generate_simple(