Applied clang-format.

Author: pratzl

include/graph/graph.hpp

@@ -376,7 +376,7 @@ concept has_contains_edge = requires(G&& g, vertex_id_t<G> uid, vertex_id_t<G> v
 template <class G>
 struct define_unordered_edge : public false_type {}; // specialized for graph container edge
 
-template <class G>                                   // For exposition only
+template <class G> // For exposition only
 concept unordered_edge = basic_sourced_edge<G> && define_unordered_edge<G>::value;
 
 //