The line is inserted using clang-format's logic with LLVM style.
Users must run clang-format afterwards if they want some other style.
Alternatives:
respect .clang-format: this would be surprising in the compiler insert at offset 0: this is bad people who don't use clang-format apply $simple_heuristic: clang-format handles lots of special cases for us
You also want clangToolingCore to be listed as a explicit dep since you're including from it.