Whither the gator dog at Doggone’s?

A descendant of a New Orleans minichain surfaces in Logan Square. Last month, on the day Chance the Snapper went MIA, I was eating an alligator sausage on a toasted bun squirted with guacamole and sprinkled with pico de gallo. This was the Swamp Dog served at Doggone’s Chicago, a new sausage shop with Louisiana DNA that opened a month and a half before people started spotting the alligator in the Humboldt Park Lagoon.…