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diff --git a/tools/node_modules/eslint/node_modules/remark-parse/lib/util/normalize.js b/tools/node_modules/eslint/node_modules/remark-parse/lib/util/normalize.js
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+++ b/tools/node_modules/eslint/node_modules/remark-parse/lib/util/normalize.js
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+/**
+ * @author Titus Wormer
+ * @copyright 2015 Titus Wormer
+ * @license MIT
+ * @module remark:parse:util:normalize
+ * @fileoverview Normalize an identifier.
+ */
+
+'use strict';
+
+/* Dependencies. */
+var collapseWhiteSpace = require('collapse-white-space');
+
+/* Expose. */
+module.exports = normalize;
+
+/**
+ * Normalize an identifier.  Collapses multiple white space
+ * characters into a single space, and removes casing.
+ *
+ * @example
+ *   normalizeIdentifier('FOO\t bar'); // 'foo bar'
+ *
+ * @param {string} value - Content to normalize.
+ * @return {string} - Normalized content.
+ */
+function normalize(value) {
+  return collapseWhiteSpace(value).toLowerCase();
+}