b9253c7d2089d3d159dcc10118ce5a219d9a6881 tools: clang-format 6 compatibility (Jon Atack)
Pull request description:
Our `.clang-format` settings inadvertently lost compatibility with Clang versions < 9 in #19095, including for Debian stable. This patch returns compatibility in the interim until the distros update. See discussion from https://github.com/bitcoin/bitcoin/pull/19095#issuecomment-651926138.
ACKs for top commit:
MarcoFalke:
Approach ACK b9253c7d2089d3d159dcc10118ce5a219d9a6881 , haven't tested
Tree-SHA512: 4af541a195f48d84ffb80e23aaefb624c66bc78f087c8d92b4af5a654420b69fedf25272c6e4fde2688ff88412d306b7a990ce1e15d8b24180374c625a253fb6