api: disk SMART: fix details for depreacated return value comment

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

PVE/Diskmanage.pm

@@ -121,7 +121,7 @@ sub get_smart_data {
 		$entry->{name} = $2 if defined $2;
 		$entry->{flags} = $3 if defined $3;
 		# the +0 makes a number out of the strings
-		# fixme remove next line in major release, use normalized instead
+		# FIXME: 'value' is depreacated by 'normalized'; remove with PVE 7.0
 		$entry->{value} = $4+0 if defined $4;
 		$entry->{normalized} = $4+0 if defined $4;
 		$entry->{worst} = $5+0 if defined $5;