ignore control-l (parallelling change to tokenizer.c)
diff --git a/Python/traceback.c b/Python/traceback.c
index bea0b19..1ab880a 100644
--- a/Python/traceback.c
+++ b/Python/traceback.c
@@ -212,7 +212,7 @@
 	}
 	if (i == lineno) {
 		char *p = linebuf;
-		while (*p == ' ' || *p == '\t')
+		while (*p == ' ' || *p == '\t' || *p == '\014')
 			p++;
 		writestring("    ", f);
 		writestring(p, f);