Description:
------------
var_export outputs float values incorrectly.

Test script:
---------------
<?php

var_export(3.3);
var_export(1.0);

var_dump(3.3);
var_dump(1.0);

Expected result:
----------------
var_export(3.3) should display 3.3.

Float values should be converted directly to strings without modification.

Actual result:
--------------
root@app:/backup/mysql# php -a
Interactive mode enabled

php > var_export(1.0);
1.0
php > var_export(3.3);
3.2999999999999998
php > var_dump(1.0);
float(1)
php > var_dump(3.3);
float(3.3)
php >