Cannot set name field when creating child

[sergejostir]

Is there a technical reason for such restriction? You can easily change the name directly on the object after creation and I couldn't figure out any reason why that would be unsafe.

node-bunyan/lib/bunyan.js

Lines 370 to 379 in fe31b83

	if (!parent) {
	if (!options.name) {
	throw new TypeError('options.name (string) is required');
	}
	} else {
	if (options.name) {
	throw new TypeError(
	'invalid options.name: child cannot set logger name');
	}
	}