From 349307ba884740b132dcf08dfb615c0f329d2579 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Mon, 21 Feb 2022 11:46:34 +0900
Subject: [PATCH] codedump.c: do not print nameless registers.

---
 src/codedump.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/codedump.c b/src/codedump.c
index 003a20394..7c71fb400 100644
--- a/src/codedump.c
+++ b/src/codedump.c
@@ -101,7 +101,10 @@ codedump(mrb_state *mrb, const mrb_irep *irep)
     printf("local variable names:\n");
     for (i = 1; i < irep->nlocals; ++i) {
       char const *s = mrb_sym_dump(mrb, irep->lv[i - 1]);
-      printf("  R%d:%s\n", i, s ? s : "");
+      if (s) {
+        printf("  R%d:%s", i, s);
+      }
+      putchar('\n');
     }
   }