From 0ebed06d00948a7aee9a5490123450d895686784 Mon Sep 17 00:00:00 2001
From: Cody Oss <codyoss@google.com>
Date: Mon, 22 Aug 2022 14:10:14 -0500
Subject: [PATCH] google: restore compatibility with older Go version

Change-Id: Ib4d9d569b8ee50a9e5a86ff63061d976a111a070
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/425094
Auto-Submit: Cody Oss <codyoss@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Tyler Bui-Palsulich <tbp@google.com>
Run-TryBot: Cody Oss <codyoss@google.com>
---
 google/internal/externalaccount/executablecredsource.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/google/internal/externalaccount/executablecredsource.go b/google/internal/externalaccount/executablecredsource.go
index 7e8f85b..579bcce 100644
--- a/google/internal/externalaccount/executablecredsource.go
+++ b/google/internal/externalaccount/executablecredsource.go
@@ -11,6 +11,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"os"
 	"os/exec"
 	"regexp"
@@ -253,7 +254,7 @@ func (cs executableCredentialSource) getTokenFromOutputFile() (token string, err
 	}
 	defer file.Close()
 
-	data, err := io.ReadAll(io.LimitReader(file, 1<<20))
+	data, err := ioutil.ReadAll(io.LimitReader(file, 1<<20))
 	if err != nil || len(data) == 0 {
 		// Cachefile exists, but no data found. Get new credential.
 		return "", nil