Missing spaces in anonymous function declaration

Formatting arguments of anonymous function is not consistent with formatting of regular functions.

1. In PHP project properties set Formatting - Use project specific options.
2. Language: PHP, Category: Spaces
3. Check mark Within Parentheses - Method / Function Declaration
4. Format code

Actual result:

function fn( $a ) {
    return $a;
}

$func = function ($a) use ($x) {
    return $a + $x;
};

Expeceted result:

function fn( $a ) {
    return $a;
}

$func = function ( $a ) use ( $x ) {
    return $a + $x;
};