lib: bitmap: fix typo in kerneldoc for bitmap_pos_to_ord

A few lines above, it was stated that positions for non-set bits are
mapped to -1, which is obviously also what the code does.

Signed-off-by: Rasmus Villemoes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
1 file changed