[LyX/master] Amend 97b9e81ceef7aae

[Juergen Spitzmueller]

commit b5c06948568ac20d47be775c230465e93ccbbcee
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Sun Sep 4 17:44:47 2016 +0200

    Amend 97b9e81ceef7aae
    
    \@ifundefined is an If-Then-ELSE construct.
---
 src/LaTeXFeatures.cpp |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/LaTeXFeatures.cpp b/src/LaTeXFeatures.cpp
index 8b7287e..999fbd6 100644
--- a/src/LaTeXFeatures.cpp
+++ b/src/LaTeXFeatures.cpp
@@ -231,8 +231,8 @@ static docstring const papersizepdf_def = from_ascii(
 
 static docstring const papersizepdflua_def = from_ascii(
        "% Backwards compatibility for LuaTeX < 0.90\n"
-       "\\@ifundefined{pageheight}{\\let\\pageheight\\pdfpageheight}\n"
-       "\\@ifundefined{pagewidth}{\\let\\pagewidth\\pdfpagewidth}\n"
+       "\\@ifundefined{pageheight}{\\let\\pageheight\\pdfpageheight}{}\n"
+       "\\@ifundefined{pagewidth}{\\let\\pagewidth\\pdfpagewidth}{}\n"
        "\\pageheight\\paperheight\n"
        "\\pagewidth\\paperwidth\n");