Rule 5.1: typographical error?

[swestin]

The amplification for this rule states:

In C99 the minimum requirement is that the first 31 characters of external identifiers are significant, with each universal character or corresponding extended source character occupying between 6 and 10 characters.

I think this is an error, and the statement should end as the parallel statement for Rule 5.2:

In C99 the minimum requirement is that the first 31 characters of external identifiers are significant, with each universal character or corresponding extended source character counting as a single character.

Is this correct?

-Stephen H. Westin
GrammaTech, Inc.