By John J. Moser 28 November 2006The Morning Call (Allentown, Pa.)Goo Goo Dolls bassist and sometimes singer Robby Takac can hardly bring himself to say it.But after struggling a bit, he utters what he calls “that horrible `m-word,’” but only after prefacing it with: “I guess after this many years you can use it without feeling too creepy.”What has Takac tied up in knots is a question about how the Goo Goo Dolls have outlasted the late-‘80s post-punk bands the Buffalo, N.Y., group came up with as well as the alt-rock bands that became popular when the Goos did in late-‘90s.“I think how we’ve m