in tools/functional_test/src/runtest/main.go [84:94]
func expandCommand(name string, args ...string) (nameOut string, argsOut []string) {
mapping := func(key string) string {
return (*vars)[key]
}
nameOut = os.Expand(name, mapping)
argsOut = make([]string, 0, len(args))
for _, arg := range args {
argsOut = append(argsOut, os.Expand(arg, mapping))
}
return
}