svn commit: r345967 - head/contrib/libxo/libxo

[Enji Cooper]

> On Apr 5, 2019, at 12:42, Phil Shafer <phil at freebsd.org> wrote:
> 
> Author: phil
> Date: Fri Apr  5 19:42:54 2019
> New Revision: 345967
> URL: https://svnweb.freebsd.org/changeset/base/345967
> 
> Log:
>  Emergency fix for NULL deref in xo_xml_leader_len

Could you please add a test for this as well upstream?

Thanks :)!
-Enji