Dropping printf special cases
Included in v0.0.22
Background
When the core for check-spelling was initially developed, it was a lot simpler and didn't have any support for patterns.
As it was often run against C/C++ repositories, code was baked-in to handle \n, \r, and \t.
Changes
If you're currently working around that special casing, you'll be able to remove your patterns.txt entries for them.
If you're currently relying on that special casing, you'll need to add entries to patterns.txt, something like:
(?<!\\)\\[nrt]
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