Update facade docblocks

Author: taylorotwell

src/Illuminate/Support/Facades/DB.php

@@ -50,7 +50,7 @@
  * @method static int affectingStatement(string $query, array $bindings = [])
  * @method static bool unprepared(string $query)
  * @method static int|null threadCount()
- * @method static array pretend(\Closure $callback)
+ * @method static array[] pretend(\Closure $callback)
  * @method static mixed withoutPretending(\Closure $callback)
  * @method static void bindValues(\PDOStatement $statement, array $bindings)
  * @method static array prepareBindings(array $bindings)
@@ -93,7 +93,7 @@
  * @method static \Illuminate\Database\Connection setTransactionManager(\Illuminate\Database\DatabaseTransactionsManager $manager)
  * @method static void unsetTransactionManager()
  * @method static bool pretending()
- * @method static array getQueryLog()
+ * @method static array[] getQueryLog()
  * @method static array getRawQueryLog()
  * @method static void flushQueryLog()
  * @method static void enableQueryLog()