google: check additional AWS variable
AWS_DEFAULT_REGION should have been checked as a backup to AWS_REGION but wasn't. Also removed a redundant print statement in a test case. Change-Id: Ia6e13eb20f509110a81e3071228283c43a1e9283 GitHub-Last-Rev: 1a10bcc0791f862983c3e3ae36f0cb73e29db267 GitHub-Pull-Request: golang/oauth2#486 Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/302789 Reviewed-by: Cody Oss <codyoss@google.com> Trust: Cody Oss <codyoss@google.com> Trust: Tyler Bui-Palsulich <tbp@google.com>
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@@ -342,6 +342,8 @@ func (cs awsCredentialSource) subjectToken() (string, error) {
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func (cs *awsCredentialSource) getRegion() (string, error) {
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if envAwsRegion := getenv("AWS_REGION"); envAwsRegion != "" {
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return envAwsRegion, nil
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} if envAwsRegion := getenv("AWS_DEFAULT_REGION"); envAwsRegion != "" {
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return envAwsRegion, nil
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}
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if cs.RegionURL == "" {
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