Added vulcanize under third_party/npm_modules

node_modules/vulcanize/node_modules/update-notifier/node_modules/semver-diff/node_modules/semver/test/clean.js

Index: node_modules/vulcanize/node_modules/update-notifier/node_modules/semver-diff/node_modules/semver/test/clean.js
diff --git a/node_modules/vulcanize/node_modules/update-notifier/node_modules/semver-diff/node_modules/semver/test/clean.js b/node_modules/vulcanize/node_modules/update-notifier/node_modules/semver-diff/node_modules/semver/test/clean.js
new file mode 100644
index 0000000000000000000000000000000000000000..9e268de950ce8cf6bebf19423a657fb10c59e157
--- /dev/null
+++ b/node_modules/vulcanize/node_modules/update-notifier/node_modules/semver-diff/node_modules/semver/test/clean.js
@@ -0,0 +1,29 @@
+var tap = require('tap');
+var test = tap.test;
+var semver = require('../semver.js');
+var clean = semver.clean;
+
+test('\nclean tests', function(t) {
+	// [range, version]
+	// Version should be detectable despite extra characters
+	[
+		['1.2.3', '1.2.3'],
+		[' 1.2.3 ', '1.2.3'],
+		[' 1.2.3-4 ', '1.2.3-4'],
+		[' 1.2.3-pre ', '1.2.3-pre'],
+		['  =v1.2.3   ', '1.2.3'],
+		['v1.2.3', '1.2.3'],
+		[' v1.2.3 ', '1.2.3'],
+		['\t1.2.3', '1.2.3'],
+		['>1.2.3', null],
+		['~1.2.3', null],
+		['<=1.2.3', null],
+		['1.2.x', null]
+	].forEach(function(tuple) {
+			var range = tuple[0];
+			var version = tuple[1];
+			var msg = 'clean(' + range + ') = ' + version;
+			t.equal(clean(range), version, msg);
+		});
+	t.end();
+});