deps: upgrade npm to 3.8.9

Contains the following three npm releases:
https://github.com/npm/npm/releases/tag/v3.8.7
https://github.com/npm/npm/releases/tag/v3.8.8
https://github.com/npm/npm/releases/tag/v3.8.9

PR-URL: https://github.com/nodejs/node/pull/6664
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/readme.md b/deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/readme.md
new file mode 100644
index 0000000000..05dae4dfc4
--- /dev/null
+++ b/deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/readme.md
@@ -0,0 +1,23 @@
+inline-process-browser
+===
+
+Browserify transform which turns any reference to `process.browser` into `true`.
+
+Can remove non-browser code when combined with [unreachable-branch-transform](https://github.com/zertosh/unreachable-branch-transform)
+
+
+turns
+
+```js
+if (process.browser) {
+  //something
+}
+```
+
+into
+
+```js
+if (true) {
+  //something
+}
+```