}
// ReadBytes reads until the first occurrence of delim in the input,
-// returning a string containing the data up to and including the delimiter.
+// returning a slice containing the data up to and including the delimiter.
// If ReadBytes encounters an error before finding a delimiter,
// it returns the data read before the error and the error itself (often os.EOF).
// ReadBytes returns err != nil if and only if line does not end in delim.