eval.py: print data directory again after the summary

eval.py

@@ -337,7 +337,7 @@ if __name__ == '__main__':
     if not DATA_DIR.exists():
         os.makedirs(DATA_DIR)
 
-    print(f"Storing results at {DATA_DIR}")
+    print(f"data_dir: {DATA_DIR}")
 
     write_desc(DATA_DIR)
     emper.prepare_client(DATA_DIR)
@@ -356,3 +356,4 @@ if __name__ == '__main__':
 
     print()
     summarize(bench(_server_cmds))
+    print(f"Written results to {DATA_DIR}")