need to fix fuzzer

source/bootrom_emulator/fuzzer.py

@@ -53,6 +53,7 @@ if __name__ == "__main__":
     
     if args.test:
         test_fb_cmd(device=args.device)
+        print("", flush=True)
         exit(0)
         
     if args.input:
@@ -60,4 +61,4 @@ if __name__ == "__main__":
         test_fb_cmd(open(args.input, 'rb').read())
     else:
         # Run AFL
-        afl_fuzzer()
+        afl_fuzzer()