Gradle Warning: missing groovy return statement

With Android Studio 2.2 I had to add a return void before the final bracket in the android section.

android {
    compileSdkVersion 24
    buildToolsVersion "24.0.2"
    defaultConfig {
        applicationId "com.example.app"
        minSdkVersion 19
        targetSdkVersion 24
        versionCode 1
        versionName "1.0"
    }

    buildTypes {
        debug {
            minifyEnabled false
            shrinkResources false
        }

        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    productFlavors {
        standard {
            applicationId "com.example.app.standard"
        }

        free {
            applicationId "com.example.app.free"
        }
    }

    // `return void` removes the lint error: `Not all execution paths return a value`.
    return void
}