Fix CodeQL warnings

Author: maxlandon

example/opts/options.go

@@ -41,16 +41,16 @@ func (m *Machine) Complete(ctx carapace.Context) carapace.Action {
 	}
 }
 
-func (p *Machine) String() string {
-	return string(*p)
+func (m *Machine) String() string {
+	return string(*m)
 }
 
-func (p *Machine) Set(value string) error {
-	*p = (Machine)(value)
+func (m *Machine) Set(value string) error {
+	*m = (Machine)(value)
 
 	return nil
 }
 
-func (p *Machine) Type() string {
-	return reflect.TypeOf(*p).Kind().String()
+func (m *Machine) Type() string {
+	return reflect.TypeOf(*m).Kind().String()
 }

internal/completions/completion.go

@@ -39,6 +39,7 @@ func GetCombinedCompletionAction(val reflect.Value, tag parser.Tag, opts *parser
 	return nil, isRepeatable, false
 }
 
+// ChoiceCompletions produces a completer proposing the tagged choices for a flag/arg.
 func ChoiceCompletions(tag parser.Tag, val reflect.Value) carapace.CompletionCallback {
 	choices := tag.GetMany("choice")