update packages to latest version

node_modules/npm/test/tap/ls-no-results.js

@@ -0,0 +1,12 @@
+var test = require("tap").test
+var spawn = require("child_process").spawn
+var node = process.execPath
+var npm = require.resolve("../../")
+var args = [ npm, "ls", "ceci n’est pas une package" ]
+test("ls exits non-zero when nothing found", function (t) {
+  var child = spawn(node, args)
+  child.on("exit", function (code) {
+    t.notEqual(code, 0)
+    t.end()
+  })
+})