diff --git a/vendor/github.com/kelseyhightower/envconfig/doc.go b/vendor/github.com/kelseyhightower/envconfig/doc.go
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+// Copyright (c) 2013 Kelsey Hightower. All rights reserved.
+// Use of this source code is governed by the MIT License that can be found in
+// the LICENSE file.
+
+// Package envconfig implements decoding of environment variables based on a user
+// defined specification. A typical use is using environment variables for
+// configuration settings.
+package envconfig