fix wrong test data in l10n

tests/data/l10n/cs.php

@@ -1,5 +1,5 @@
 <?php
 $TRANSLATIONS = array(
-	"_%n window__%n windows_" => array("%n okno", "%n okna", "%n oken")
+	"_%n window_::_%n windows_" => array("%n okno", "%n okna", "%n oken")
 );
 $PLURAL_FORMS = "nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;";

tests/data/l10n/de.php

@@ -1,5 +1,5 @@
 <?php
 $TRANSLATIONS = array(
-	"_%n file__%n files_" => array("%n Datei", "%n Dateien")
+	"_%n file_::_%n files_" => array("%n Datei", "%n Dateien")
 );
 $PLURAL_FORMS = "nplurals=2; plural=(n != 1);";

tests/data/l10n/ru.php

@@ -1,5 +1,5 @@
 <?php
 $TRANSLATIONS = array(
-	"_%n file__%n files_" => array("%n файл", "%n файла", "%n файлов")
+	"_%n file_::_%n files_" => array("%n файл", "%n файла", "%n файлов")
 );
 $PLURAL_FORMS = "nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);";