google: fix syntax error

Change-Id: I18dd98234a87dca59a199d90a5d0b9cedd80e5af
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/330189
Reviewed-by: Cody Oss <codyoss@google.com>
Trust: Cody Oss <codyoss@google.com>
Trust: Tyler Bui-Palsulich <tbp@google.com>
Run-TryBot: Cody Oss <codyoss@google.com>
TryBot-Result: Go Bot <gobot@golang.org>

Author: enocom

google/internal/externalaccount/aws.go

@@ -13,7 +13,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"golang.org/x/oauth2"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -23,6 +22,8 @@ import (
 	"sort"
 	"strings"
 	"time"
+
+	"golang.org/x/oauth2"
 )
 
 type awsSecurityCredentials struct {
@@ -342,7 +343,8 @@ func (cs awsCredentialSource) subjectToken() (string, error) {
 func (cs *awsCredentialSource) getRegion() (string, error) {
 	if envAwsRegion := getenv("AWS_REGION"); envAwsRegion != "" {
 		return envAwsRegion, nil
-	} if envAwsRegion := getenv("AWS_DEFAULT_REGION"); envAwsRegion != "" {
+	}
+	if envAwsRegion := getenv("AWS_DEFAULT_REGION"); envAwsRegion != "" {
 		return envAwsRegion, nil
 	}