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Create promisify.js

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	`1`	`+const promisify = callback => arguments => {`
	`2`	`+ return new Promise((resolve, reject) => {`
	`3`	`+ callback.apply(null, [`
	`4`	`+ ...arguments,`
	`5`	`+ (err, data) => {`
	`6`	`+ if (err) {`
	`7`	`+ return reject(err);`
	`8`	`+ }`
	`9`	`+ resolve(data);`
	`10`	`+ }`
	`11`	`+ ]);`
	`12`	`+ });`
	`13`	`+};`
	`14`	`+`
	`15`	`+/**`
	`16`	`+ * Usage`
	`17`	`+ *`
	`18`	`+ const readFileAsArray = async (file) => {`
	`19`	`+ try {`
	`20`	`+ const readFile = promisify(fs.readFile);`
	`21`	`+ const data = await readFile([file]);`
	`22`	`+ const lines = data`
	`23`	`+ .toString()`
	`24`	`+ .trim()`
	`25`	`+ .split("\n");`
	`26`	`+ return lines;`
	`27`	`+ } catch (error) {`
	`28`	`+ cb(null, error);`
	`29`	`+ }`
	`30`	`+};`
	`31`	`+`
	`32`	`+ */`

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