What would you change in C?

It's the time for the next revision of the C standard and for some reason they want your advice. What do you add, remove, rename, etc ?

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I also miss unicode support and/or TeX-like markup, so I could name my variables \psi and \lambda and my editor would show them as proper symbols, ideally even storing them in the file as such (i.e. UTF-8 encoded). Without this C just feels slightly antiquated and inadequate for my specific requirements.