A Vintage Shorts "Short Story Month" Selection   From the Man Booker Prize-winning author of The Sense of an Ending and one of Britain's greatest writers, a twist on the workshop story and defense of Papa Hemingway, with art, love, ambition mixed in.   "Homage to Hemingway" is modeled after the oft-overlooked Ernest Hemingway story "Homage to Switzerland," a formally experimental work composed of three related vignettes.  Here, Barnes composes three portraits of the modern writing life, a rhapsodic, witty and hopeful account of the writer's search for what is good and what is true. From Barnes's collection of miscellaneous prose, Through the Window.      An eBook short.