Auxiliary::Web: force vuln proof to_s

lib/msf/core/auxiliary/web.rb

@@ -237,7 +237,7 @@ module Auxiliary::Web
 			:params		 => element.params.to_a,
 			:mode		 => mode,
 			:pname		 => element.altered,
-			:proof		 => proof,
+			:proof		 => proof.to_s,
 			:form		 => element.model,
 			:risk		 => details[:risk],
 			:name		 => details[:name],
@@ -266,7 +266,7 @@ module Auxiliary::Web
 			:method		 => element.method.to_s.upcase,
 			:params		 => element.params.to_a,
 			:pname		 => element.altered,
-			:proof		 => proof,
+			:proof		 => proof.to_s,
 			:risk		 => details[:risk],
 			:name		 => details[:name],
 			:blame		 => details[:blame],