Actually, I can't take credit for the spelling - I forwarded the text as-is.
I did notice it, however.
Sadly, I've been trained out of British/Canadian spellings through years of
using American spell checkers.
I still pronounce "Aunt" properly, however. (I don't know if that's a
Canadian-ism, but it's at least a New England-ism [my parents are from
Connecticut and Vermont]).