From d0dbd94db0cfd10218401cc47aa25889a6ace42c Mon Sep 17 00:00:00 2001
From: Di Xu <stephenhsu90@gmail.com>
Date: Thu, 22 Mar 2018 13:16:05 +0800
Subject: [PATCH] escape literal percent sign when formatting

---
 pkg/kubectl/explain/formatter.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkg/kubectl/explain/formatter.go b/pkg/kubectl/explain/formatter.go
index ab9c53e9ed..04bdb04644 100644
--- a/pkg/kubectl/explain/formatter.go
+++ b/pkg/kubectl/explain/formatter.go
@@ -48,7 +48,11 @@ func (f *Formatter) Write(str string, a ...interface{}) error {
 	for i := 0; i < f.IndentLevel; i++ {
 		indent = indent + " "
 	}
-	_, err := io.WriteString(f.Writer, indent+fmt.Sprintf(str, a...)+"\n")
+
+	if len(a) > 0 {
+		str = fmt.Sprintf(str, a...)
+	}
+	_, err := io.WriteString(f.Writer, indent+str+"\n")
 	return err
 }