py: Remove name of var arg from macros with var args.
diff --git a/py/qstr.c b/py/qstr.c
index a34479c..aebc292 100644
--- a/py/qstr.c
+++ b/py/qstr.c
@@ -12,7 +12,7 @@
 #if 0 // print debugging info
 #define DEBUG_printf DEBUG_printf
 #else // don't print debugging info
-#define DEBUG_printf(args...) (void)0
+#define DEBUG_printf(...) (void)0
 #endif
 
 // A qstr is an index into the qstr pool.