[BUG] org-link-search fails if search string contains new lines

[Matt Lundin <mdl@imapmail.org>]

Following links fails to locate the appropriate location in text files
if the search string in the link contains new lines.

Steps to reproduce:

/usr/bin/emacs -Q ~/config/minimal.el

where minimal.el contains...

--8<---------------cut here---------------start------------->8---
(add-to-list 'load-path "~/org-mode/lisp/")
(add-to-list 'load-path "~/org-mode/contrib/lisp/")

(setq org-agenda-files '("~/config/test.org"))

(setq org-capture-templates
      '(("n" "Note" entry
	           (file "~/config/test.org")
                   "* Test\n %a\n")))
--8<---------------cut here---------------end--------------->8---

Open a file (~/text.txt) containing....

--8<---------------cut here---------------start------------->8---
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad
minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat. Duis aute irure dolor in
reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
culpa qui officia deserunt mollit anim id est laborum.
--8<---------------cut here---------------end--------------->8---

Create an active region covering the third sentence and select the
org-capture "n" template, which creates the following link:

--8<---------------cut here---------------start------------->8---
* Test
 [[file:~/test.txt::Duis%20aute%20irure%20dolor%20in%0Areprehenderit%20in%20voluptate%20velit%20esse%20cillum%20dolore%20eu%20fugiat%20nulla%0Apariatur.]]
--8<---------------cut here---------------end--------------->8---

Try to follow the link. It will open test.txt, but it will also give the
message and fail to locate the correct position in the file:

        "No match for fuzzy expression: Duis aute irure dolor in
        reprehenderit in voluptate velit esse cillum dolore eu fugiat
        nulla pariatur."

For comparison, evaluate (setq org-context-in-file-links 1) and run
capture again. The captured snippet looks like this:

--8<---------------cut here---------------start------------->8---
* Test
 [[file:~/test.txt::Duis%20aute%20irure%20dolor%20in]]
--8<---------------cut here---------------end--------------->8---

Follow the link. The fuzzy search succeeds and finds the correct
position in the text.

Matt