Update XDG information in support of bug report 892.

kcm_gtk/kcmgtk.desktop

@@ -8,9 +8,9 @@ OnlyShowIn=TDE;
 
 Encoding=UTF-8
 X-Keywords=kcmgtk,gtk,style,font
-X-KDE-FactoryName=kcmgtk
-X-KDE-Library=kcmgtk
-X-KDE-ModuleType=Library
+X-TDE-FactoryName=kcmgtk
+X-TDE-Library=kcmgtk
+X-TDE-ModuleType=Library
 
 Name[de]=GTK-Stile und Schriftarten
 Comment[de]=Einstellung der Stile und Schriftarten in GTK-Anwendungen
@@ -24,5 +24,5 @@ Name[ru]=Стили и шрифты GTK
 Comment[ru]=Управление стилями и шрифтами GTK
 
 Type=Application
-Categories=X-KDE-systemsettings-lookandfeel-appearance;X-KDE-settings-looknfeel;
+Categories=X-TDE-systemsettings-lookandfeel-appearance;X-TDE-settings-looknfeel;