tools: Make sure code compiles with the latest version of base NS-3
diff --git a/tools/rocketfuel-maps-cch-to-annotaded.cc b/tools/rocketfuel-maps-cch-to-annotaded.cc
index 193d6f5..13b4ddd 100644
--- a/tools/rocketfuel-maps-cch-to-annotaded.cc
+++ b/tools/rocketfuel-maps-cch-to-annotaded.cc
@@ -61,7 +61,7 @@
       cerr << "ERROR: topology needs to be specified" << endl;
       cerr << endl;
 
-      cerr << cmd;
+      cmd.PrintHelp (cerr);
       return 1;
     }
 
@@ -70,7 +70,7 @@
       cerr << "ERROR: output needs to be specified" << endl;
       cerr << endl;
 
-      cerr << cmd;
+      cmd.PrintHelp (cerr);
       return 1;
     }
 
@@ -79,7 +79,7 @@
       cerr << "ERROR: run needs to be specified" << endl;
       cerr << endl;
 
-      cerr << cmd;
+      cmd.PrintHelp (cerr);
       return 1;
     }
 
@@ -88,7 +88,7 @@
       cerr << "ERROR: clients needs to be specified" << endl;
       cerr << endl;
 
-      cerr << cmd;
+      cmd.PrintHelp (cerr);
       return 1;
     }