Spelling
Enforces consistent spellings.
Source
extends: consistency
message: "Inconsistent spelling of '%s'"
level: error
ignorecase: true
# We only want one of these to appear.
either:
advisor: adviser
centre: center
Example
There is no difference in meaning between center and centre. Center is the
preferred spelling in American English, and centre is preferred in varieties
of English from outside the U.S.