default scope if not set for impersonated service account credential type

[guillaumeblaquiere]

Fix issue #537 when no scope is set (use of default credential for instance).

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[gopherbot]

Message from Cody Oss:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from guillaume blaquiere:

Patch Set 1:

(1 comment)

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Please don’t reply on this GitHub thread. Visit golang.org/cl/380114.
After addressing review feedback, remember to publish your drafts!

[gopherbot]

Message from Cody Oss:

Patch Set 1:

(1 comment)

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Please don’t reply on this GitHub thread. Visit golang.org/cl/380114.
After addressing review feedback, remember to publish your drafts!

[gopherbot]

Message from guillaume blaquiere:

Patch Set 1:

(1 comment)

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Please don’t reply on this GitHub thread. Visit golang.org/cl/380114.
After addressing review feedback, remember to publish your drafts!