deps: upgrade npm to 6.1.0

PR-URL: https://github.com/nodejs/node/pull/20190
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/deps/npm/node_modules/fs-write-stream-atomic/node_modules/iferr/README.md b/deps/npm/node_modules/fs-write-stream-atomic/node_modules/iferr/README.md
new file mode 100644
index 0000000000..0940763fa9
--- /dev/null
+++ b/deps/npm/node_modules/fs-write-stream-atomic/node_modules/iferr/README.md
@@ -0,0 +1,40 @@
+# iferr
+
+Higher-order functions for easier error handling.
+
+`if (err) return cb(err);` be gone!
+
+## Install
+```bash
+npm install iferr
+```
+
+## Use
+
+### JavaScript example
+```js
+var iferr = require('iferr');
+
+function get_friends_count(id, cb) {
+  User.load_user(id, iferr(cb, function(user) {
+    user.load_friends(iferr(cb, function(friends) {
+      cb(null, friends.length);
+    }));
+  }));
+}
+```
+
+### CoffeeScript example
+```coffee
+iferr = require 'iferr'
+
+get_friends_count = (id, cb) ->
+  User.load_user id, iferr cb, (user) ->
+    user.load_friends iferr cb, (friends) ->
+      cb null, friends.length
+```
+
+(TODO: document tiferr, throwerr and printerr)
+
+## License
+MIT