uri_string() without slash again?

I've updated from 4.2 to 4.3. It seems uri_string() has changed again and now the result is without starting slash as it was some versions before?

in one of the prior updates I had to change code from

$_path = '/'.uri_string() just to $_path = uri_string()

and now back to

$_path = '/'.uri_string()

or do I get something wrong?

Changing such details througout the code would be quite annoying.