From 073813e271eda32b93d3d11d8239672d1ca0d7e8 Mon Sep 17 00:00:00 2001
From: Stephen Gutekanst <slimsag@users.noreply.github.com>
Date: Wed, 24 Aug 2016 23:53:15 -0700
Subject: [PATCH] Update documentation example for HTTPHeaders BuiltinFormat

As `Tracer.Extract` does not take a first `opName` string parameter.
---
 propagation.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/propagation.go b/propagation.go
index 4d4e1bf..077a119 100644
--- a/propagation.go
+++ b/propagation.go
@@ -85,7 +85,7 @@ const (
 	//
 	//    carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
 	//    span, err := tracer.Extract(
-	//        "opName", opentracing.HTTPHeaders, carrier)
+	//        opentracing.HTTPHeaders, carrier)
 	//
 	HTTPHeaders
 )