[patch] Move method into TEST macros and check for verbose in _dbus_verbose_bytes

[Havoc Pennington]

John (J5) Palmieri wrote:
> -  if (!verbose)
> +  if (!_dbus_is_verbose_real())

Maybe leave this accessing the variable directly, just so this function 
is as fast as possible with verbose disabled? (this is dbus_verbose_real 
itself)

Patch looks fine.

Havoc