[LyX/master] Whoops, forgot this part

[Richard Kimberly Heck]

commit 1fb308cd028c7b9510224d504775c4f88e6084de
Author: Richard Kimberly Heck <rikih...@lyx.org>
Date:   Wed Sep 11 20:30:31 2019 -0400

    Whoops, forgot this part
---
 src/insets/InsetInclude.cpp |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/insets/InsetInclude.cpp b/src/insets/InsetInclude.cpp
index c889f1c..2c02002 100755
--- a/src/insets/InsetInclude.cpp
+++ b/src/insets/InsetInclude.cpp
@@ -572,6 +572,7 @@ void InsetInclude::latex(otexstream & os, OutputParams 
const & runparams) const
        string const exppath = runparams.export_folder.empty() ?
                        incfile :
                        makeAbsPath(exppath, 
runparams.export_folder).realPath();
+       FileName(exppath).onlyPath().createPath();
 
        // write it to a file (so far the complete file)
        string exportfile;