Add support for Kumyk (kum)

Bug: T186647
Change-Id: I704e493d743d54071fc6f5341ea04e8a48ebaad7

RELEASE-NOTES-1.31

@@ -93,6 +93,7 @@ changes to languages because of Phabricator reports.
 * (T182305) New language support: Nyungar (nys).
 * (T186359) New language support: Siberian Tatar [cебертатар] (sty).
 * (T186635) New language support: Guianan Creole (gcr).
+* (T186647) New language support: Kumyk [къумукъ] (kum).
 
 === Other changes in 1.31 ===
 * Introducing multi-content-revision capability into the storage layer. For details,

languages/data/Names.php

@@ -254,6 +254,7 @@ class Names {
 		'ku' => 'Kurdî', # Kurdish (multiple scripts - defaults to Latin)
 		'ku-latn' => "Kurdî (latînî)\xE2\x80\x8E", # Northern Kurdish (Latin script)
 		'ku-arab' => "كوردي (عەرەبی)\xE2\x80\x8F", # Northern Kurdish (Arabic script) (falls back to ckb)
+		'kum' => 'къумукъ', # Kumyk (Cyrillic, 'kum-latn' for Latin script)
 		'kv' => 'коми', # Komi-Zyrian (Cyrillic is common script but also written in Latin script)
 		'kw' => 'kernowek', # Cornish
 		'ky' => 'Кыргызча', # Kirghiz

languages/messages/MessagesKum.php

@@ -0,0 +1,10 @@
+<?php
+/** Kumyk (къумукъ)
+ *
+ * To improve a translation please visit https://translatewiki.net
+ *
+ * @ingroup Language
+ * @file
+ */
+
+$fallback = 'ru';