Ensure errnoe is reset and saved in order to avoid sideeffects of later calls.
Ensure errnoe is reset and saved in order to avoid sideeffects of later calls.

vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa