Fix typo

Author: DennisOSRM

include/util/static_assert.hpp

@@ -10,15 +10,13 @@ namespace util
 
 template <typename It, typename Value> inline void static_assert_iter_value()
 {
-    using IterValueType = typename std::iterator_traits;
-    <It>::value_type;
+    using IterValueType = typename std::iterator_traits<It>::value_type;
     static_assert(std::is_same<IterValueType, Value>::value, "");
 }
 
 template <typename It, typename Category> inline void static_assert_iter_category()
 {
-    using IterCategoryType = typename std::iterator_traits;
-    <It>::iterator_category;
+    using IterCategoryType = typename std::iterator_traits<It>::iterator_category;
     static_assert(std::is_base_of<Category, IterCategoryType>::value, "");
 }