Call kill-buffer with argument nil

* ob-haskell.el (org-babel-haskell-export-to-lhs): Call kill-buffer
with argument indiciating to kill current buffer. Emacs 22
compatibility.

GNU Emacs 22.3.2 (i686-pc-linux-gnu) of 2011-05-28 on x60s

C-h f kill-buffer RET

kill-buffer is an interactive built-in function in `C source code'.
It is bound to C-x k.
(kill-buffer buffer)

Kill the buffer buffer.
The argument may be a buffer or the name of a buffer.
With a nil argument, kill the current buffer.

lisp/ob-haskell.el

@@ -192,7 +192,7 @@ constructs (header arguments, no-web syntax etc...) are ignored."
     (save-excursion
       ;; export to latex w/org and save as .lhs
       (find-file tmp-org-file) (funcall 'org-export-as-latex nil)
-      (kill-buffer)
+      (kill-buffer nil)
       (delete-file tmp-org-file)
       (find-file tmp-tex-file)
       (goto-char (point-min)) (forward-line 2)
@@ -202,7 +202,7 @@ constructs (header arguments, no-web syntax etc...) are ignored."
         (replace-match (save-match-data (org-remove-indentation (match-string 0)))
                        t t))
       (setq contents (buffer-string))
-      (save-buffer) (kill-buffer))
+      (save-buffer) (kill-buffer nil))
     (delete-file tmp-tex-file)
     ;; save org exported latex to a .lhs file
     (with-temp-file lhs-file (insert contents))