Fix Hunspell invocation for discovering its dictionaries

* lisp/textmodes/ispell.el
(ispell-find-hunspell-dictionaries): Invoke Hunspell with the
-a switch, to prevent it from initializing its curses UI.
(Bug#34272)

lisp/textmodes/ispell.el

@@ -1114,12 +1114,19 @@ dictionary from that list was found."
 				 null-device
 				 t
 				 nil
+                                 "-D"
+                                 ;; Use -a to prevent Hunspell from
+                                 ;; trying to initialize its
+                                 ;; curses/termcap UI, which causes it
+                                 ;; to crash or fail to start in some
+                                 ;; MS-Windows ports.
+                                 "-a"
                                  ;; Hunspell 1.7.0 (and later?) won't
                                  ;; show LOADED DICTIONARY unless
                                  ;; there's at least one file argument
                                  ;; on the command line.  So we feed
                                  ;; it with the null device.
-				 "-D" null-device)
+				 null-device)
 	    (buffer-string))
 	  "[\n\r]+"
 	  t))