[("tests/examples/Default55.hs:1:12-27: Warning: Use concatMap\nFound:\n concat (map f x)\nPerhaps:\n concatMap f x\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 12, endLine = 1, endCol = 28}, subts = [("f",SrcSpan {startLine = 1, startCol = 24, endLine = 1, endCol = 25}),("x",SrcSpan {startLine = 1, startCol = 26, endLine = 1, endCol = 27})], orig = "concatMap f x"}])]