Incorrect documentation of the length of the machine-independent format?

[favonia]

I believe the following documentation for the machine-independent format is incorrect: https://github.com/backtracking/bitv/blob/531844cb50b8639342310989c055eb274f73e428/bitv.mli#L204-L206 The reason is that the code seems to fix the number of bytes to 8. If so, the length is always 8+ceil(n/8). https://github.com/backtracking/bitv/blob/531844cb50b8639342310989c055eb274f73e428/bitv.ml#L582-L583 I wonder if I missed anything?