[LyX/master] Fix rendering issue in oxygen promote icon

[Juergen Spitzmueller]

commit 3255491366b1554d8f41d44ba202e4899db492ff
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Fri Mar 13 19:40:09 2015 +0100

    Fix rendering issue in oxygen promote icon

diff --git a/lib/images/oxygen/promote.svgz b/lib/images/oxygen/promote.svgz
index 921baae..876f14d 100644
Binary files a/lib/images/oxygen/promote.svgz and 
b/lib/images/oxygen/promote.svgz differ