Bump to v4.0.0.

internal/baseSortedUniq.js

@@ -0,0 +1,14 @@
+import baseSortedUniqBy from './baseSortedUniqBy';
+
+/**
+ * The base implementation of `_.sortedUniq`.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @returns {Array} Returns the new duplicate free array.
+ */
+function baseSortedUniq(array) {
+  return baseSortedUniqBy(array);
+}
+
+export default baseSortedUniq;