[("tests/examples/Default104.hs:1:7: Error: Use maximumBy\nFound:\n  last (sortBy (compare `on` fst) xs)\nWhy not:\n  maximumBy (compare `on` fst) xs\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 7, endLine = 1, endCol = 42}, subts = [("f",SrcSpan {startLine = 1, startCol = 20, endLine = 1, endCol = 38}),("x",SrcSpan {startLine = 1, startCol = 39, endLine = 1, endCol = 41})], orig = "maximumBy f x"}])]