service-client: Fix a check for system app
We don't want to stop a system app client on agent's behalf but our check for system apps was inverted so we ended up doing the opposite. :( Thanks to Florian Müllner for pointing this out.
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We don't want to stop a system app client on agent's behalf but our check for system apps was inverted so we ended up doing the opposite. :( Thanks to Florian Müllner for pointing this out.