[("tests/examples/Default0.hs:1:7-20: Warning: Use concatMap\nFound:\n  concat . map f\nPerhaps:\n  concatMap f\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 7, endLine = 1, endCol = 21}, subts = [("f",SrcSpan {startLine = 1, startCol = 20, endLine = 1, endCol = 21})], orig = "concatMap f"}])]