Execute a System function.

Property definitions

popcorn $ TestPopcorn :: system
	# Execute a System function.
	fun system(cmd: String, title: nullable String)
	do
		title = title or else cmd
		title = title.replace(host_re, "localhost:*****")
		print "\n[Client] {title}"
		sys.system cmd
	end
lib/popcorn/pop_tests.nit:160,2--167,4