From cbd2c7a283b785f109dd350ef4d20dd9871d3359 Mon Sep 17 00:00:00 2001
From: Robert Dinu <r@oktett.se>
Date: Wed, 20 Feb 2013 14:30:15 -0800
Subject: [PATCH] fmt: fix width for nil values

Apply width when using Printf with nil values.
Fixes #4772.

R=r, adg
CC=golang-dev
https://golang.org/cl/7314114
---
 src/pkg/fmt/fmt_test.go | 4 ++++
 src/pkg/fmt/print.go    | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/pkg/fmt/fmt_test.go b/src/pkg/fmt/fmt_test.go
index a49b339554..af4b5c8f8e 100644
--- a/src/pkg/fmt/fmt_test.go
+++ b/src/pkg/fmt/fmt_test.go
@@ -178,6 +178,8 @@ var fmttests = []struct {
 	{"%.3q", "日本語日本語", `"日本語"`},
 	{"%.3q", []byte("日本語日本語"), `"日本語"`},
 	{"%10.1q", "日本語日本語", `       "日"`},
+	{"%10v", nil, "     <nil>"},
+	{"%-10v", nil, "<nil>     "},
 
 	// integers
 	{"%d", 12345, "12345"},
@@ -437,6 +439,8 @@ var fmttests = []struct {
 	{"%T", renamedComplex128(4 - 3i), "fmt_test.renamedComplex128"},
 	{"%T", intVal, "int"},
 	{"%6T", &intVal, "  *int"},
+	{"%10T", nil, "     <nil>"},
+	{"%-10T", nil, "<nil>     "},
 
 	// %p
 	{"p0=%p", new(int), "p0=0xPTR"},
diff --git a/src/pkg/fmt/print.go b/src/pkg/fmt/print.go
index 636bb5e1a1..7d7aa93b2a 100644
--- a/src/pkg/fmt/print.go
+++ b/src/pkg/fmt/print.go
@@ -729,7 +729,7 @@ func (p *pp) printField(field interface{}, verb rune, plus, goSyntax bool, depth
 
 	if field == nil {
 		if verb == 'T' || verb == 'v' {
-			p.buf.Write(nilAngleBytes)
+			p.fmt.pad(nilAngleBytes)
 		} else {
 			p.badVerb(verb)
 		}
-- 
2.48.1