Created attachment 89354 [details]
Screenshot

This one liner makes the items sorted here:

kdeframeworks@parodia:~/src/workspace/plasma-desktop(trunk)$ git diff kcms/formats/
diff --git a/kcms/formats/kcmformats.cpp b/kcms/formats/kcmformats.cpp
index 3224a65..2ebae0c 100644
--- a/kcms/formats/kcmformats.cpp
+++ b/kcms/formats/kcmformats.cpp
@@ -91,6 +91,7 @@ void KCMFormats::initCombo(QComboBox *combo, const QList<QLocale> & allLocales)
     foreach(const QLocale & l, allLocales) {
         addLocaleToCombo(combo, l);
     }
+    combo->model()->sort(0); 
 }
 
 void KCMFormats::connectCombo(QComboBox *combo)

Git commit 697a83086a20d2cf76b7afd92e774aa38051e418 by Burkhard Lück.
Committed on 31/10/2014 at 15:49.
Pushed by lueck into branch 'Plasma/5.1'.

Sort Region items in combobox in KCM Formats
REVIEW:120916

M  +1    -0    kcms/formats/kcmformats.cpp

http://commits.kde.org/plasma-desktop/697a83086a20d2cf76b7afd92e774aa38051e418