[presentation-templates] GUADEC 2018 aspect ratio is 4:3

[Benjamin Berg <bberg src gnome org>]

commit b202880f526873d34c3ce916679173a1ee39200d
Author: Benjamin Berg <bberg redhat com>
Date:   Tue Jun 26 20:03:42 2018 +0200

    GUADEC 2018 aspect ratio is 4:3

 GUADEC/2018/Makefile           | 2 +-
 GUADEC/2018/guadec-example.tex | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/GUADEC/2018/Makefile b/GUADEC/2018/Makefile
index eb16d80..eef5cc0 100644
--- a/GUADEC/2018/Makefile
+++ b/GUADEC/2018/Makefile
@@ -23,7 +23,7 @@ tex: $(OUT)
 pandoc:
        @echo -n "Compiling $(PANDOC_SRC) to $(PANDOC_OUT)... "
        @pandoc $(PANDOC_SRC) -t beamer+smart -s -o $(PANDOC_OUT) \
-       -V theme:guadec -V classoption:aspectratio=1610 --slide-level 2 --highlight-style kate
+       -V theme:guadec -V classoption:aspectratio=43 --slide-level 2 --highlight-style kate
        @echo "Done!"
 
 continuous: pandoc
diff --git a/GUADEC/2018/guadec-example.tex b/GUADEC/2018/guadec-example.tex
index 28ecdd8..62471cf 100644
--- a/GUADEC/2018/guadec-example.tex
+++ b/GUADEC/2018/guadec-example.tex
@@ -1,4 +1,4 @@
-\documentclass[aspectratio=1610]{beamer}
+\documentclass[aspectratio=43]{beamer}
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage{listings}