Throwing errors with no configFile define

Just wondering...

If I'd like on my configuration to be done via the args parameter, while throw an error if no configFile is defined (yet it works if one provide an empty string).

Example:

    protractor: {
        options: {
            configFile: '', // We need this or we get an error

            noColor: false,

            args: {
                specs: [
                    'client/tests/e2e/*.js'
                ],

                capabilities: {
                    'browserName': 'chrome'
                },

                baseUrl: 'http://http://127.0.0.1:3000/',

                framework: 'jasmine'
            }
        },
        e2e: {
            options: {
                keepAlive: false
            }
        },
        continuous: {
            options: {
                keepAlive: true
            }
        }
    },

teerapap / grunt-protractor-runner

Throwing errors with no configFile define #128