Gulp 4.0 Feature request: sync task

Created by: buckle2000

This task will start but will not finish in gulp@4.0:

gulp.task('reload', () => console.log('Hi'))

I have to change it to

gulp.task('reload', async () => console.log('Hi'))

• for gulp to work.

Can gulp support synchronic task? Also, please mention and highlight this behavior explicitly in the API document, thanks.