Fix overly replacement in the documentation
@@ -810,7 +810,7 @@ void mpi_core_cond_assign( data_t * input_X,
TEST_CF_PUBLIC( Y, bytes );
/* Check if the given length is copied even it is smaller
- than the bytesgth of the given MPIs. */
+ than the length of the given MPIs. */
if( copy_limbs < limbs )
{
ASSERT_COMPARE( X, copy_bytes, Y, copy_bytes );
