fix(identity): resolve shellcheck warnings

thin-edge / tedge-rugpi-image

thin-edge.io Raspberry Pi 0/1B/2B/3/4/5 image using rugpi for A/B updates

https://thin-edge.io/

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Closed reubenmiller closed 10 months ago

reubenmiller commented 10 months ago

Resolve shellcheck warnings by grepping file directly rather than using cat.