Why is Canadian English setting using British English instead?

My phone is set to English (Canada) in Languages & Input but instead of Canadian it uses British spelling (eg "Aeroplane Mode" instead of Airplane Mode, "Torch" instead of Flashlight and "Customise" instead of Customize. If I switch to US English some of my Canadian apps don't work properly. Is this a problem at my end or with Android's understanding of Canadian English?

from Android Forums at AndroidCentral.com - Ask a Question //forums.androidcentral.com/ask-question/758145-why-canadian-english-setting-using-british-english-instead-new-post.html
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