fix: lint warnings

@jotadeveloper · sergiohgz · commit 444a99ec05fb · 2019-07-24T23:16:19.000+02:00
diff --git a/core/streams/src/index.js b/core/streams/src/index.js
@@ -1,4 +1,4 @@
-import { PassThrough } from 'stream';
+import {PassThrough} from 'stream';
 
 /**
  * This stream is used to read tarballs from repository.

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-import { PassThrough } from 'stream';`
	`1`	`+import {PassThrough} from 'stream';`
`2`	`2`
`3`	`3`	`/**`
`4`	`4`	`* This stream is used to read tarballs from repository.`