deps: upgrade npm to 6.9.0

Co-authored-by: Myles Borins <mylesborins@google.com>

PR-URL: https://github.com/nodejs/node/pull/26244
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

1 files changed, 15 insertions, 0 deletions

diff --git a/deps/npm/node_modules/pacote/lib/util/read-json.js b/deps/npm/node_modules/pacote/lib/util/read-json.js
new file mode 100644
index 0000000000..32fffbc537
--- /dev/null
+++ b/deps/npm/node_modules/pacote/lib/util/read-json.js
@@ -0,0 +1,15 @@
+'use strict'
+
+module.exports = function (content) {
+  // Code also yanked from read-package-json.
+  function stripBOM (content) {
+    content = content.toString()
+    // Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+    // because the buffer-to-string conversion in `fs.readFileSync()`
+    // translates it to FEFF, the UTF-16 BOM.
+    if (content.charCodeAt(0) === 0xFEFF) return content.slice(1)
+    return content
+  }
+
+  return JSON.parse(stripBOM(content))
+}