Update app/controllers/api/functions.php

Co-authored-by: Jake Barnby <jakeb994@gmail.com>

app/controllers/api/functions.php

@@ -1472,7 +1472,7 @@ App::put('/v1/functions/:functionId/variables/:variableId')
         ]);
 
         if ($variable === false || $variable->isEmpty()) {
-            throw new Exception(Exception::VARIABLE_NOT_FOUND, 'Variable not found');
+            throw new Exception(Exception::VARIABLE_NOT_FOUND);
         }
 
         $variable