<para>This union type allows accessing the 128 bit ID
as 16 separate bytes or two 64 bit words. It is generally
safer to access the ID components by their 8 bit array
- to avoid endianess issues. This union is intended to
+ to avoid endianness issues. This union is intended to
be passed call-by-value (as opposed to
call-by-reference) and may be directly manipulated by
clients.</para>