From 45cb5208e8ff42601523ad6ac0ae3408801dcf8d Mon Sep 17 00:00:00 2001
From: Satoshi Kinoshita <kino@cloudian.com>
Date: Thu, 14 Mar 2019 16:47:47 +0900
Subject: [PATCH] use shorter escape sequence

---
 runebuf.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/runebuf.go b/runebuf.go
index 6059b22..432ab59 100644
--- a/runebuf.go
+++ b/runebuf.go
@@ -603,7 +603,8 @@ func (r *RuneBuffer) cleanOutput(w io.Writer, idxLine int) {
 	} else {
 		buf.Write([]byte("\033[J")) // just like ^k :)
 		if idxLine == 0 {
-			buf.WriteString(strings.Repeat("\033[D", r.idx + r.promptLen()))
+			num := strconv.Itoa(r.idx + r.promptLen())
+			buf.WriteString("\033[" + num + "D")
 			buf.Write([]byte("\033[J"))
 		} else {
 			for i := 0; i < idxLine; i++ {