in cmd/cloudshell_open/appfile.go [222:232]
func (e envKeyValuePairs) Less(i, j int) bool {
// if env.Order is unspecified, it should appear less.
// otherwise, less values show earlier.
if e[i].v.Order == nil {
return false
}
if e[j].v.Order == nil {
return true
}
return *e[i].v.Order < *e[j].v.Order
}