Upgrade formatting to clang-format 10 (#5895)

* Update formatting tools to clang-format-10

* Reformat using clang-format-10.0.09

src/guidance/turn_lane_matcher.cpp

@@ -272,6 +272,6 @@ Intersection triviallyMatchLanesToTurns(Intersection intersection,
     return intersection;
 }
 
-} // namespace lane_matching
+} // namespace lanes
 } // namespace guidance
 } // namespace osrm