chore: default exports

src/util.js

@@ -1,4 +1,7 @@
-export function dequote (input) {
+import { readFile, writeFile } from 'fs'
+import { promisify } from 'bluebird'
+
+function dequote (input) {
   input = input.trim()
 
   const singleQuote = input.startsWith('\'') && input.endsWith('\'')
@@ -8,3 +11,12 @@ export function dequote (input) {
   }
   return input
 }
+
+const readFileAsync = promisify(readFile)
+const writeFileAsync = promisify(writeFile)
+
+export {
+  readFileAsync,
+  writeFileAsync,
+  dequote
+}