This code ... if (sorted.size() < minimum) return { }; ... results in this checker error: Multi line control clauses should use braces. [whitespace/braces] [4]
I found out why it was complaining. Xcode had indented eight characters, like so: if (sorted.size() < minimum) return { }; // Eight space chars here confuses the checker.
I hit this bug with attachment #319945 [details] (bug #176388).