cli/command/stack: fix faulty sort for sorting stacks

[thaJeztah]

This code was updated in 7b9580d (#3139), which removed support for using kubernetes as orchestrator, but in doing so made this sort.Slice (probably) not do what it was expected to do ':)

index 412cc2e5ee86..861ae1be2fb9 100644
@@ -75,8 +54,7 @@ func format(dockerCli command.Cli, opts options.List, orchestrator command.Orche
}
sort.Slice(stacks, func(i, j int) bool {
return sortorder.NaturalLess(stacks[i].Name, stacks[j].Name) ||
- !sortorder.NaturalLess(stacks[j].Name, stacks[i].Name) &&- sortorder.NaturalLess(stacks[j].Namespace, stacks[i].Namespace)+ !sortorder.NaturalLess(stacks[j].Name, stacks[i].Name)
})
return formatter.StackWrite(stackCtx, stacks)
}

The extra condition was added in 84241cc (#1031) to support multiple namespaces. This patch removes it, bringing it back to the state it was before that commit.

- A picture of a cute animal (not mandatory but encouraged)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.42%. Comparing base (4270341) to head (be14edc).

Additional details and impacted files

@@ Coverage Diff @@## master #5212 +/- ##
==========================================
- Coverage 61.43% 61.42% -0.01% 
==========================================
Files 298 298 Lines 20799 20798 -1 ==========================================
- Hits 12777 12776 -1 
Misses 7109 7109 Partials 913 913