you can open the patch file, see it manually……a little change I think it's useful.
as to “trailing whitespace”, I’m sorry about this format problem……

Sent from Windows Mail

From: Nick Dokos
Sent: ‎Saturday‎, ‎February‎ ‎28‎, ‎2015 ‎11‎:‎43‎ ‎PM
To: emacs-orgmode@gnu.org

<kuangdash@163.com> writes:

> Hi, buddies:
>     a little change has been made……
>

Trying to apply your patch on top of current master, I get:

,----
| $ git apply ~/Desktop/0001-again.patch
| /home/nick/Desktop/0001-again.patch:18: trailing whitespace.
| - If the cursor is on the overlay(latex fragment .etc), delete it.
| /home/nick/Desktop/0001-again.patch:19: trailing whitespace.
|
| /home/nick/Desktop/0001-again.patch:27: trailing whitespace.
|    ((overlayp (car (overlays-at (point)))) (let ((overlay (car (overlays-at (point)))))
| /home/nick/Desktop/0001-again.patch:28: trailing whitespace.
|                                              (if (overlayp overlay)
| /home/nick/Desktop/0001-again.patch:29: trailing whitespace.
|                                                  (delete-overlay overlay)
| error: patch failed: lisp/org.el:20757
| error: lisp/org.el: patch does not apply
`----

--
Nick