Fix undefined method error

[FixRM rapid7#8328]

Author: wchen-r7

modules/auxiliary/scanner/http/web_vulndb.rb

@@ -140,8 +140,7 @@ def run_host(ip)
 					if testmesg.empty? or usecode
 						if(not res or ((res.code.to_i == ecode) or (emesg and res.body.index(emesg))))
 							if dm == false
-								print_status("NOT Found #{wmap_base_url}#{tpath}#{testfvuln}  #{res.code.to_i}")
-								#blah
+								print_status("NOT Found #{wmap_base_url}#{tpath}#{testfvuln}  #{res.code.to_i rescue ''}")
 							end
 						else
 							if res.code.to_i == 400  and ecode != 400
@@ -173,8 +172,7 @@ def run_host(ip)
 							)
 						else
 							if dm == false
-								print_status("NOT Found #{wmap_base_url}#{tpath}#{testfvuln}  #{res.code.to_i}")
-								#blah
+								print_status("NOT Found #{wmap_base_url}#{tpath}#{testfvuln}  #{res.code.to_i rescue ''}")
 							end
 						end
 					end