MINOR Simplify i18n keys

code/Controllers/CMSSiteTreeFilter_ChangedPages.php

@@ -13,7 +13,7 @@ class CMSSiteTreeFilter_ChangedPages extends CMSSiteTreeFilter
 
     public static function title()
     {
-        return _t('SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_ChangedPages.Title', "Modified pages");
+        return _t(__CLASS__ . '.Title', "Modified pages");
     }
 
     public function getFilteredPages()

code/Controllers/CMSSiteTreeFilter_DeletedPages.php

@@ -25,7 +25,7 @@ class CMSSiteTreeFilter_DeletedPages extends CMSSiteTreeFilter
 
     public static function title()
     {
-        return _t('SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_DeletedPages.Title', "All pages, including archived");
+        return _t(__CLASS__ . '.Title', "All pages, including archived");
     }
 
     public function getFilteredPages()

code/Controllers/CMSSiteTreeFilter_PublishedPages.php

@@ -20,7 +20,7 @@ class CMSSiteTreeFilter_PublishedPages extends CMSSiteTreeFilter
      */
     public static function title()
     {
-        return _t('SilverStripe\\CMS\\Controllers\\CMSSIteTreeFilter_PublishedPages.Title', "Published pages");
+        return _t(__CLASS__ . '.Title', "Published pages");
     }
 
     /**

code/Controllers/CMSSiteTreeFilter_Search.php

@@ -1,4 +1,5 @@
 <?php
+
 namespace SilverStripe\CMS\Controllers;
 
 use SilverStripe\CMS\Model\SiteTree;
@@ -10,7 +11,7 @@ class CMSSiteTreeFilter_Search extends CMSSiteTreeFilter
 
     public static function title()
     {
-        return _t('SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_Search.Title', "All pages");
+        return _t(__CLASS__ . '.Title', "All pages");
     }
 
     /**

code/Controllers/CMSSiteTreeFilter_StatusDeletedPages.php

@@ -24,7 +24,7 @@ class CMSSiteTreeFilter_StatusDeletedPages extends CMSSiteTreeFilter
 
     public static function title()
     {
-        return _t('SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_StatusDeletedPages.Title', 'Archived pages');
+        return _t(__CLASS__ . '.Title', 'Archived pages');
     }
 
     /**

code/Controllers/CMSSiteTreeFilter_StatusDraftPages.php

@@ -14,7 +14,7 @@ class CMSSiteTreeFilter_StatusDraftPages extends CMSSiteTreeFilter
 
     public static function title()
     {
-        return _t('SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_StatusDraftPages.Title', 'Draft pages');
+        return _t(__CLASS__ . '.Title', 'Draft pages');
     }
 
     /**

code/Controllers/CMSSiteTreeFilter_StatusRemovedFromDraftPages.php

@@ -14,7 +14,7 @@ class CMSSiteTreeFilter_StatusRemovedFromDraftPages extends CMSSiteTreeFilter
 
     public static function title()
     {
-        return _t('SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_StatusRemovedFromDraftPages.Title', 'Live but removed from draft');
+        return _t(__CLASS__ . '.Title', 'Live but removed from draft');
     }
 
     /**