Bug 1091648 - Follow up 1089829 - [Usage] Show a note to notice user wha...

...t are the format constrains for data limit
The function `preventBadInput` is as follows:
```javascript
function preventBadInput(valid, newChar, currentInput) {
  var target = simulateNewValue(newChar, currentInput);
  var isInvalid = !valid(target);
  return isInvalid;
}
```