Update LINGUAS (bug #15949)

po/LINGUAS

 # please keep this list sorted alphabetically
 #
+be
 bg
 ca
+cs
 da
 de
+en_AU
 es
 eu
+fi
 fr
+gl
+he
+hu
+hy_AM
+is
 it
+ja
+ko
 lt
 ms
+nb
 nl
 pl
+pt_BR
+pt
 ru
 sk
+sl
 sq
+sr
 sv
+th
 tr
 zh_CN
 zh_TW
\ No newline at end of file