Node 12: `node --debug` and `node --debug-brk` are invalid. Please use `node --inspect` and `node --inspect-brk` instead.

[BobbyBakes]

When used with node 12. deprecated options are used when debugging

[BobbyBakes]

Looks like we would just need to update

mocha.el/mocha.el

Line 163 in 33e1b52

(node-command (concat mocha-which-node (if debug (concat " --debug=" mocha-debug-port) "")))