[gimp-web/testing] Update OSX direct download link to 2.8.18

[Pat David <patdavid src gnome org>]

commit a76d5b850cf4b05500d831a117c7a21369dee03b
Author: Pat David <patdavid gmail com>
Date:   Tue Jul 19 09:48:22 2016 -0500

    Update OSX direct download link to 2.8.18
    
    Using the new link from kris on the ftp.

 content/downloads/index.md |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/content/downloads/index.md b/content/downloads/index.md
index a24eace..d6a7bbb 100644
--- a/content/downloads/index.md
+++ b/content/downloads/index.md
@@ -50,7 +50,7 @@ Please refer to the documentation for your Unix-like system on the installation
 </a>
 </span>
 <span class='win-button'>
-<a href="//download.gimp.org/mirror/pub/gimp/v2.8/osx/gimp-2.8.16-x86_64-1.dmg">
+<a href="//download.gimp.org/mirror/pub/gimp/v2.8/osx/gimp-2.8.18-x86_64.dmg">
     Download GIMP&nbsp;2.8.16<br/>
     directly
 </a>