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diff --git a/node_modules/grunt-legacy-util/node_modules/lodash/subtract.js b/node_modules/grunt-legacy-util/node_modules/lodash/subtract.js
new file mode 100644
index 000000000..9ce53f2a3
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+++ b/node_modules/grunt-legacy-util/node_modules/lodash/subtract.js
@@ -0,0 +1,29 @@
+/**
+ * Subtract two numbers.
+ *
+ * @static
+ * @memberOf _
+ * @category Math
+ * @param {number} minuend The first number in a subtraction.
+ * @param {number} subtrahend The second number in a subtraction.
+ * @returns {number} Returns the difference.
+ * @example
+ *
+ * _.subtract(6, 4);
+ * // => 2
+ */
+function subtract(minuend, subtrahend) {
+  var result;
+  if (minuend === undefined && subtrahend === undefined) {
+    return 0;
+  }
+  if (minuend !== undefined) {
+    result = minuend;
+  }
+  if (subtrahend !== undefined) {
+    result = result === undefined ? subtrahend : (result - subtrahend);
+  }
+  return result;
+}
+
+module.exports = subtract;