fixed wrong usage of ts(), CRM-13329

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* CRM-13329: Add 2 more rows to the Badge Layout form (for a total of 6 rows)
  http://issues.civicrm.org/jira/browse/CRM-13329

CRM/Core/BAO/LabelFormat.php

@@ -195,8 +195,8 @@ class CRM_Core_BAO_LabelFormat extends CRM_Core_DAO_OptionValue {
    */
   public static function getFontSizes() {
     $fontSizes = array();
-    for ($i=6; $i<=60; $i++) {
-      $fontSizes[$i] = ts('%1 pt', $i);
+    for ($i = 6; $i <= 60; $i++) {
+      $fontSizes[$i] = ts('%1 pt', array(1 => $i));
     }
 
     return $fontSizes;