fixed formating

Signed-off-by: Christian Goll <cgoll@suse.com>

internal/app/wwclient/root.go

@@ -156,7 +156,7 @@ func CobraRunE(cmd *cobra.Command, args []string) (err error) {
 
 	// Dereference wwid from [interface] for cases that cannot have /proc/cmdline set by bootloader
 	if string(wwid[0]) == "[" {
-		iface := wwid[1:len(wwid)-1]
+		iface := wwid[1 : len(wwid)-1]
 		wwid_tmp, err := os.ReadFile(fmt.Sprintf("/sys/class/net/%s/address", iface))
 		if err != nil {
 			wwlog.Error("'wwid' cannot be dereferenced from /sys/class/net", iface)
@@ -166,7 +166,6 @@ func CobraRunE(cmd *cobra.Command, args []string) (err error) {
 		wwlog.Info("Dereferencing wwid from [%s] to %s", iface, wwid)
 	}
 
-
 	duration := 300
 	if conf.Warewulf.UpdateInterval > 0 {
 		duration = conf.Warewulf.UpdateInterval