update packages to latest version

node_modules/npm/lib/config/load-uid.js

@@ -0,0 +1,15 @@
+module.exports = loadUid
+
+var getUid = require("uid-number")
+
+// Call in the context of a npmconf object
+
+function loadUid (cb) {
+  // if we're not in unsafe-perm mode, then figure out who
+  // to run stuff as.  Do this first, to support `npm update npm -g`
+  if (!this.get("unsafe-perm")) {
+    getUid(this.get("user"), this.get("group"), cb)
+  } else {
+    process.nextTick(cb)
+  }
+}