fix(languages): Fix Uyghur hyphenation

Author: alerque

languages/ug/init.lua

@@ -113,7 +113,7 @@ end
 -- function debugUyghur(word)
 --   SILE.languageSupport.loadLanguage("ug")
 --   print(SILE.showHyphenationPoints(word,"ug"))
---   local items = SILE._hyphenate(SILE.hyphenators["ug"],word)
+--   local items = SILE._hyphenate(SILE._hyphenators["ug"],word)
 --   print(reorderHyphenations(items,true))
 -- end
 
@@ -124,10 +124,10 @@ SILE.hyphenator.languages.ug = function (n)
    -- Make "Turkish" nodes
    local newoptions = pl.tablex.deepcopy(n.options)
    newoptions.language = "lt"
-   if not SILE.hyphenators.lt then
+   if not SILE._hyphenators.lt then
       SILE.hyphenate(SILE.shaper:createNnodes(latin, newoptions))
    end
-   local items = SILE._hyphenate(SILE.hyphenators["lt"], latin)
+   local items = SILE._hyphenate(SILE._hyphenators["lt"], latin)
    if #items == 1 then
       SU.debug("uyghur", latin, "No hyphenation points")
       return { n }