isEndpointConnected should take local disk inputs (#9803)

PR #9801 while it is correct, the loop isEndpointConnected()
was changed to rely on endpoint.String() which has the host
information as well, which is not correct value as input to
detect if the disk is down or up, if endpoint is local use
its local path value instead.

cmd/xl-sets.go

@@ -190,7 +190,11 @@ func (s *xlSets) connectDisks() {
 	var wg sync.WaitGroup
 	diskMap := s.getDiskMap()
 	for _, endpoint := range s.endpoints {
-		if isEndpointConnected(diskMap, endpoint.String()) {
+		diskPath := endpoint.String()
+		if endpoint.IsLocal {
+			diskPath = endpoint.Path
+		}
+		if isEndpointConnected(diskMap, diskPath) {
 			continue
 		}
 		wg.Add(1)