redirect output to avoid arch variable contamination #8760
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Description
For the runner manual install some versions of grep caused extra output to enter the arch variable. This PR redirects the
/usr/bin/arch
stderr and stdout to avoid contaminating the variable with extra output.Reasons
Issue was raised in an on-prem support workflow https://circleci.slack.com/archives/C05LH7BMR2A/p1713553512725209
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