HTTP/3: send Stream Cancellation instruction. As per quic-qpack-21: When a stream is reset or reading is abandoned, the decoder emits a Stream Cancellation instruction. Previously the instruction was not sent. Now it's sent when closing QUIC stream connection if dynamic table capacity is non-zero and eof was not received from client. The latter condition means that a trailers section may still be on its way from client and the stream needs to be cancelled.

if exists("b:did_indent")
    finish
endif
let b:did_indent = 1

setlocal indentexpr=

" cindent actually works for nginx' simple file structure
setlocal cindent
" Just make sure that the comments are not reset as defs would be.
setlocal cinkeys-=0#