function invokeCallback( error, status ) {
		var pkgInfo = {
			'name': pkgJSON && pkgJSON.name,
			'description': pkgJSON && pkgJSON.description,
			'status': status || ( ( error )? 'failure' : 'success' )
		};
		clbk( error, pkgInfo );
	}
Callback invoked upon pushing package contents to remote GitHub repository.

@private
@param {(Error|null)} error - encountered error
@param {string} [status] - publish status
@returns {void}