shell out to find the binary when absolutely necessary
shell out to find the binary when absolutely necessary

lunks/execjs,lunks/execjs,looker/execjs,rails/execjs,sstephenson/execjs,atambo/execjs,golla/sample1,golla/sample1,universsky/execjs,maclover7/execjs,atambo/execjs,looker/execjs,rails/execjs,ibroadfo/execjs,ibroadfo/execjs,maclover7/execjs,universsky/execjs,sstephenson/execjs