Mac build fix, gsed -> sed
Mac build fix, gsed -> sed

Homebrew is calling its GNU sed just 'sed' now.

antmicro/yosys,SymbiFlow/yosys,swallat/yosys,antmicro/yosys,SymbiFlow/yosys,azonenberg/yosys,antmicro/yosys,azonenberg/yosys,azonenberg/yosys,SymbiFlow/yosys,YosysHQ/yosys,YosysHQ/yosys,swallat/yosys,swallat/yosys,antmicro/yosys,YosysHQ/yosys,antmicro/yosys,cliffordwolf/yosys,azonenberg/yosys,SymbiFlow/yosys,swallat/yosys,cliffordwolf/yosys,azonenberg/yosys,azonenberg/yosys,swallat/yosys,antmicro/yosys,cliffordwolf/yosys,antmicro/yosys,cliffordwolf/yosys,SymbiFlow/yosys,cliffordwolf/yosys,cliffordwolf/yosys,SymbiFlow/yosys,YosysHQ/yosys,antmicro/yosys,cliffordwolf/yosys,YosysHQ/yosys,YosysHQ/yosys,swallat/yosys,azonenberg/yosys,YosysHQ/yosys,SymbiFlow/yosys,azonenberg/yosys,swallat/yosys,swallat/yosys,YosysHQ/yosys,cliffordwolf/yosys,azonenberg/yosys,swallat/yosys,SymbiFlow/yosys,cliffordwolf/yosys