Conditionally disable unused-result on OpenBSD
Conditionally disable unused-result on OpenBSD

juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff