[clang] [clang-format] adds a space after not inside macros (PR #78176)

[Björn Schäpers via cfe-commits]

HazardyKnusperkeks wrote:

I think this is kind of too specific. Whoever uses `not` will most likely not combine it with `!`. Also I agree with https://github.com/llvm/llvm-project/issues/78166#issuecomment-1892311219 that `WhitespaceSensitiveMacros` should be used.

https://github.com/llvm/llvm-project/pull/78176