John Rzeznik may be touring with pop royalty like Darryl Hall and racking up the Hot AC format hit singles like nobody’s business, but at heart, he’s a Buffalo kid with a guitar and a past he’s still trying to outrun.You can say what you like about the Goo Goo Dolls – and people in Buffalo undoubtedly will, as they always have, whether they’re celebrating the band’s enduring resonance in the broader pop world, or chiding them for “selling out” to stadium-pop success – but you can’t say the band doesn’t infuse its music with lessons that could have been learned in only our city, or one an awful