gulp文件在改动完后，想在控制台输出变化流，知道具体改变的文件名是哪个？

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gulp.task('sass', function() {      return sass(['stc/scss/*.scss','!stc/scss/extend/{reset,test}.scss'],{sourcemap:true})     //.pipe(sourcemaps.init())     .pipe(sourcemaps.write('../maps'))     .on('error',function(err) {         notify().write(err);         this.emit('end');     })     .pipe(gulp.dest('stc/css'))// Write the CSS & Source maps     .pipe(filter('**/*.css')); // Filtering stream to only css files    .pipe(reload({stream: true})); });

想在这个函数运行的最后输出变化流，需要知道具体改动的文件名该怎么写？
目前加了.pipe(reload({stream: true}));这句控制台报错。

error：

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F:\new-gulp-test {git}{hg} {lamb} gulp serve F:\new-gulp-test\gulpfile.js:67        .pipe(reload({stream: true}));        ^ SyntaxError: Unexpected token .     at exports.runInThisContext (vm.js:53:16)     at Module._compile (module.js:373:25)     at Object.Module._extensions..js (module.js:416:10)     at Module.load (module.js:343:32)     at Function.Module._load (module.js:300:12)     at Module.require (module.js:353:17)     at require (internal/module.js:12:17)     at Liftoff.handleArguments (C:\Users\Administrator\AppData\Roaming\npm\node_modules\.gulp_npminstall\gulp\3.9.1\gulp\bin\gulp.js:116:3)     at Liftoff. (C:\Users\Administrator\AppData\Roaming\npm\node_modules\.gulp_npminstall\liftoff\2.2.1\liftoff\index.js:193:16)     at module.exports (C:\Users\Administrator\AppData\Roaming\npm\node_modules\.gulp_npminstall\flagged-respawn\0.3.2\flagged-respawn\index.js:17:3)