Fix some missing requires, globals, whitespace

scripts/http-jsonp-detection.nse

@@ -1,3 +1,4 @@
+local nmap = require "nmap"
 local http = require "http"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
@@ -50,8 +51,7 @@ local callbacks = {"callback", "cb", "jsonp", "jsonpcallback", "jcb", "call"}
 --Checks the body and returns if valid json data is present in callback function
 local checkjson = function(body)
 
-  local func, json_data
-  _, _, _, func, json_data = string.find(body, "^(%S-)([%w_]+)%((.*)%);?$")
+  local _, _, _, func, json_data = string.find(body, "^(%S-)([%w_]+)%((.*)%);?$")
 
   --Check if the json_data is valid
   --If valid, we have a JSONP endpoint with func as the function name

scripts/puppet-naivesigning.nse

@@ -1,5 +1,6 @@
 local shortport = require "shortport"
 local stdnse = require "stdnse"
+local string = require "string"
 local http = require "http"
 local table = require "table"
 local io = require "io"