Updated len check with null check

setup.src

@@ -18,16 +18,14 @@ end function
 imports.utils.Exit = function(reason)
 	exit(imports.utils.GetProgName()+": "+reason)
 end function
-imports.utils.ParamLength = function(params)
-	return params.len
-end function
 imports.utils.GetParam = function(params, index)
-    if index < 0 or index >= params.len then return null
+    if index < 0 or index >= imports.utils.ParamLength(params) then return null
 	return params[index]
 end function
 imports.utils.HasFlag = function(params, short, long)
+    if imports.utils.ParamLength(params) == 0 then return null
 	param = params[0]
-	return param == "-"+short or param == "-"+long
+	return param == "-"+short or param == "--"+long
 end function
 	
 imports.temp = {}