Fix a problem when pushing to toybox
diff --git a/src/data.c b/src/data.c
index 4578542..a3210ae 100644
--- a/src/data.c
+++ b/src/data.c
@@ -120,7 +120,7 @@
 #ifndef NDEBUG
   "quit request not honored",
   "limits request not honored",
-#endif
+#endif // NDEBUG
 };
 
 const char bc_sig_msg[34] = "\ninterrupt (type \"quit\" to exit)\n";