gulp-amdcleaner

var gulp = require('gulp');
var amdcleaner = require('gulp-amdcleaner');
 
gulp.tasks('build', function() {
    return gulp.src('src/app.js')
        .pipe(amdcleaner({
            prefixMode: 'camelCase'
            // other options
        })
        .pipe(gulp.dest('dist');
});