Description:
------------
If a CLI argument is passed with leading whitespace, the value is not picked up by 
getopt() if specified as an optional value (with two colons). This is contrary to 
the documentation, which states, "Option values are the first argument after the 
string. It does not matter if a value has leading white space or not."

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

var_dump(getopt('v'));
var_dump(getopt('v:'));
var_dump(getopt('v::'));


?>


$ ./test.php -v2 asdf   # behaves as expected
$ ./test.php -v=2 asdf  # behaves as expected
$ ./test.php -v 2 asdf  # problem case, shown in actual result


Expected result:
----------------
array(1) {
  ["v"]=>
  bool(false)
}
array(1) {
  ["v"]=>
  string(1) "2"
}
array(1) {
  ["v"]=>
  string(1) "2"
}


Actual result:
--------------
array(1) {
  ["v"]=>
  bool(false)
}
array(1) {
  ["v"]=>
  string(1) "2"
}
array(1) {
  ["v"]=>
  bool(false)
}