fix storage info output with unordered endpoints arguments (#9610)

Shuffling arguments that we pass to MinIO server are supported. However,
when that happens, Prometheus returns wrong information about disks usage
and online/offline status.

The commit fixes the issue by avoiding relying on xl.endpoints since
it is not ordered.

cmd/format-xl.go

@@ -664,7 +664,7 @@ func initXLMetaVolumesInLocalDisks(storageDisks []StorageAPI, formats []*formatX
 	// Compute the local disks eligible for meta volumes (re)initialization
 	var disksToInit []StorageAPI
 	for index := range storageDisks {
-		if formats[index] == nil || storageDisks[index] == nil || storageDisks[index].Hostname() != "" {
+		if formats[index] == nil || storageDisks[index] == nil || !storageDisks[index].IsLocal() {
 			// Ignore create meta volume on disks which are not found or not local.
 			continue
 		}