Upgrade formatting to clang-format 10 (#5895)

* Update formatting tools to clang-format-10

* Reformat using clang-format-10.0.09

src/server/api/parameters_parser.cpp

@@ -62,7 +62,7 @@ boost::optional<ParameterT> parseParameters(std::string::iterator &iter,
 
     return boost::none;
 }
-} // ns detail
+} // namespace detail
 
 template <>
 boost::optional<engine::api::RouteParameters> parseParameters(std::string::iterator &iter,
@@ -110,6 +110,6 @@ boost::optional<engine::api::TileParameters> parseParameters(std::string::iterat
     return detail::parseParameters<engine::api::TileParameters, TileParametersGrammar<>>(iter, end);
 }
 
-} // ns api
-} // ns server
-} // ns osrm
+} // namespace api
+} // namespace server
+} // namespace osrm