From 7e6877fe747c2bd12a44a57a6f75c970f3f2f9cd Mon Sep 17 00:00:00 2001
From: Joshua T Corbin <joshua@uber.com>
Date: Mon, 18 Jun 2018 12:51:14 -0700
Subject: [PATCH] Add Buffer.TrimNewline

---
 buffer/buffer.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/buffer/buffer.go b/buffer/buffer.go
index ba918d78f..a8bc24df4 100644
--- a/buffer/buffer.go
+++ b/buffer/buffer.go
@@ -98,6 +98,15 @@ func (b *Buffer) Write(bs []byte) (int, error) {
 	return len(bs), nil
 }
 
+// TrimNewline trims any final "\n" byte from the end of the buffer.
+func (b *Buffer) TrimNewline() {
+	if i := len(b.bs) - 1; i >= 0 {
+		if b.bs[i] == '\n' {
+			b.bs = b.bs[:i]
+		}
+	}
+}
+
 // Free returns the Buffer to its Pool.
 //
 // Callers must not retain references to the Buffer after calling Free.