fix lastage var

backuppc_check.pl

@@ -81,7 +81,7 @@ if ( $host ) {
     $json->{enabled}         = ( $conf->{BackupsDisable} > 0 ) ? 0 : 1;
     $json->{total_size}      = $sizes->sum + $json->{full_size} - 2 * $new_size_of_last_full;
     $json->{age}             = time - $bpc_info[$i]->{startTime};
-    $lastAge = sprintf("%.1f", (time - $json->{age}) / (24 * 3600));
+    $lastAge = sprintf("%.1f", ($json->{age}) / 84600);
     $json->{max_errors} = $conf->{MaxXferError} || 0;
   }
 } elsif ( $entity ) {