Zhang Hao

lib/task.js 34行 `fs.writeFileSync(varsPath, fs.readFileSync(path.resolve(process.cwd(), config.config)), 'utf-8')` 应该是 `fs.writeFileSync(varsPath, fs.readFileSync(path.resolve(process.cwd(), opts.config || config.config)), 'utf-8')` 否则 et -c （--config） 设置了路径会无效并报错找不到config.config路径文件

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