Description:
------------
In mt_rand documentation, 
http://docs.php.net/manual/en/function.mt-rand.php
http://php.net/manual/en/function.mt-rand.php
It seems the function accepts one or two parameters.
int mt_rand ([ int $min ], int $max )

However, it does not accept a single parameter, 
but no or two parameters.

mt_rand($max); // genreates a warning.
Warning: mt_rand() expects exactly 2 parameters, 1 given 
mt_rand() or mt_rand($min, $max) are ok.

The documented prototype should be same as rand()'s.
http://php.net/manual/en/function.rand.php
int rand ( void )
int rand ( int $min , int $max )

See also http://bugs.php.net/bug.php?id=12550





Reproduce code:
---------------
See http://docs.php.net/manual/en/function.mt-rand.php



Expected result:
----------------
int mt_rand ( void )
int mt_rand ( int $min , int $max )
(like http://php.net/manual/en/function.rand.php)

or

int mt_rand ([ int $min , int $max ])





Actual result:
--------------
int mt_rand ([ int $min ], int $max )