Ensure _.pick supports path arrays. [closes #2809]

lodash.js

@@ -13529,7 +13529,7 @@
      * // => { 'a': 1, 'c': 3 }
      */
     var pick = flatRest(function(object, paths) {
-      return object == null ? {} : basePick(object, arrayMap(paths, toKey));
+      return object == null ? {} : basePick(object, paths);
     });
 
     /**

test/test.js

@@ -17597,6 +17597,15 @@
       assert.deepEqual(_.pick(nested, 'b.c'), { 'b': { 'c': 2 } });
     });
 
+    QUnit.test('should support path arrays', function(assert) {
+      assert.expect(1);
+
+      var object = { 'a.b.c': 1 },
+          actual = _.pick(object, [['a.b.c']]);
+
+      assert.deepEqual(actual, { 'a.b.c': 1 });
+    });
+
     QUnit.test('should coerce property names to strings', function(assert) {
       assert.expect(1);
 
@@ -23585,7 +23594,7 @@
       });
     });
 
-    QUnit.test('should a new path array', function(assert) {
+    QUnit.test('should return new path array', function(assert) {
       assert.expect(1);
 
       assert.notStrictEqual(_.toPath('a.b.c'), _.toPath('a.b.c'));