fix: don't prune assets dir (#274)

Some packages put css files under assets. Example: https://unpkg.com/react-github-button@0.1.11/assets/
cnpm · Jul 11, 2018 · fed1d7b · fed1d7b
1 parent d2cbc08
commit fed1d7b
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/lib/download/npm.js b/lib/download/npm.js
@@ -492,7 +492,6 @@ const defaultDirectories = toMap([
   '.vscode',
   'website',
   'images',
-  'assets',
   'example',
   'examples',
   'coverage',