Patch to fix a few typos

[Tom Tromey <tromey@redhat.com>]

This patch fixes a few typos I happened across.

Tom

2007-08-06  Tom Tromey  <tromey@redhat.com>

	* diff-mode.el (diff-fixup-modifs): Fix typo
	(diff-reverse-direction): Likewise.
	(diff-unified->context): Likewise.

Index: lisp/diff-mode.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/diff-mode.el,v
retrieving revision 1.110
diff -u -r1.110 diff-mode.el
--- lisp/diff-mode.el	3 Aug 2007 22:06:35 -0000	1.110
+++ lisp/diff-mode.el	6 Aug 2007 19:13:16 -0000
@@ -724,7 +724,7 @@
 (defun diff-unified->context (start end)
   "Convert unified diffs to context diffs.
 START and END are either taken from the region (if a prefix arg is given) or
-else cover the whole bufer."
+else cover the whole buffer."
   (interactive (if (or current-prefix-arg (and transient-mark-mode mark-active))
 		   (list (region-beginning) (region-end))
 		 (list (point-min) (point-max))))
@@ -907,7 +907,7 @@
 (defun diff-reverse-direction (start end)
   "Reverse the direction of the diffs.
 START and END are either taken from the region (if a prefix arg is given) or
-else cover the whole bufer."
+else cover the whole buffer."
   (interactive (if (or current-prefix-arg (and transient-mark-mode mark-active))
 		   (list (region-beginning) (region-end))
 		 (list (point-min) (point-max))))
@@ -969,7 +969,7 @@
 (defun diff-fixup-modifs (start end)
   "Fixup the hunk headers (in case the buffer was modified).
 START and END are either taken from the region (if a prefix arg is given) or
-else cover the whole bufer."
+else cover the whole buffer."
   (interactive (if (or current-prefix-arg (and transient-mark-mode mark-active))
 		   (list (region-beginning) (region-end))
 		 (list (point-min) (point-max))))