code: function init(debug) {
  	debug.inspectOpts = {};
  
  	const keys = Object.keys(exports.inspectOpts);
  	for (let i = 0; i < keys.length; i++) {
  		debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
  	}
  }
docs: Init logic for `debug` instances.
  
  Create a new `inspectOpts` object in case `useColors` is set
  differently for a particular `debug` instance.