The grammar errors are in the docs for octet_length and printf, close by to one another:

Thus, octet_length(X) is efficient even if X is column containing a multi-megabyte text or blob value.

should be

Thus, octet_length(X) is efficient even if X is *a* column containing a multi-megabyte text or blob value.

and

The format() SQL function was original named printf().

should be

The format() SQL function was original*ly* named printf().

Asterisks for emphasis in bug report, not to be includedi in fix.

Thanks!