update longest name

src/outils_graph.py

@@ -599,7 +599,7 @@ def get_name_new_node(new_nodes, relevant_modules):
     #Arbitrary choice of choosing the name with the longest name
     longest_name = new_nodes[0][0]
     for name in new_nodes:
-        if(len(longest_name)>len(name[0])):
+        if(len(longest_name)<len(name[0])):
             longest_name = name[0]
 
     return longest_name