Remove trailing whitespace in lua files

Whitespace is not significant, so this should not be a problem.
https://secwiki.org/w/Nmap/Code_Standards

scripts/dpap-brute.nse

@@ -15,7 +15,7 @@ Performs brute force password auditing against an iPhoto Library.
 --
 -- @output
 -- 8770/tcp open  apple-iphoto syn-ack
--- | dpap-brute: 
+-- | dpap-brute:
 -- |   Accounts
 -- |     secret => Login correct
 -- |   Statistics
@@ -34,7 +34,7 @@ categories = {"intrusive", "brute"}
 portrule = shortport.port_or_service(8770, "apple-iphoto")
 
 Driver = {
-	
+
 	new = function(self, host, port)
 		local o = {}
        	setmetatable(o, self)
@@ -43,13 +43,13 @@ Driver = {
 		o.port = port
 		return o
 	end,
-	
+
 	connect = function( self )
 		self.socket = nmap.new_socket()
 		self.socket:set_timeout(5000)
 		return self.socket:connect(self.host, self.port, "tcp")
 	end,
-	
+
 	login = function( self, username, password )
 		local data = "GET dpap://%s:%d/login HTTP/1.1\r\n" ..
 			"User-Agent: iPhoto/9.1.1  (Macintosh; N; PPC)\r\n" ..
@@ -57,31 +57,31 @@ Driver = {
 			"Authorization: Basic %s\r\n" ..
 			"Client-DPAP-Version: 1.1\r\n" ..
 			"\r\n\r\n"
-		
+
 		local c = base64.enc("nmap:" .. password)
 		data = data:format( self.host.ip, self.port.number, self.host.ip, c )
-		
+
 		local status = self.socket:send( data )
 		if ( not(status) ) then
 			local err = brute.Error:new( "Failed to send data to DPAP server" )
 			err:setRetry( true )
 			return false, err
 		end
-		
+
 		status, data = self.socket:receive()
 		if ( not(status) ) then
 			local err = brute.Error:new( "Failed to receive data from DPAP server" )
 			err:setRetry( true )
 			return false, err
 		end
-		
+
 		if ( data:match("^HTTP/1.1 200 OK") ) then
 			return true, brute.Account:new(username, password, creds.State.VALID)
 		end
-		
+
 		return false, brute.Error:new( "Incorrect password" )
 	end,
-	
+
 	disconnect = function( self )
 		self.socket:close()
 	end,
@@ -91,11 +91,11 @@ Driver = {
 local function checkEmptyPassword(host, port)
 	local d = Driver:new(host, port)
 	local status = d:connect()
-	
+
 	if ( not(status) ) then
 		return false
 	end
-	
+
 	status = d:login("", "")
 	d:disconnect()
 
@@ -109,13 +109,13 @@ action = function(host, port)
 		return "Library has no password"
 	end
 
-	local status, result 
+	local status, result
 	local engine = brute.Engine:new(Driver, host, port )
-	
+
 	engine.options.firstonly = true
 	engine.options:setOption( "passonly", true )
 	engine.options.script_name = SCRIPT_NAME
-		
+
 	status, result = engine:start()
 
 	return result