[mathgl] Fix sed command

[Dmitrij S. Kryzhevich]

commit 409110a48459a5a621a92eec36cd6360366ce30f
Author: Dmitrij S. Kryzhevich <krege at land.ru>
Date:   Wed Apr 17 19:11:07 2013 +0700

    Fix sed command

 mathgl.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/mathgl.spec b/mathgl.spec
index 6428228..9985f89 100644
--- a/mathgl.spec
+++ b/mathgl.spec
@@ -169,7 +169,7 @@ sed -i s,/usr/local/share/doc/mathgl/,%{_docdir}/%{name}/, udav/udav_wnd.h
 sed -i s,/usr/local/share/udav/,%{_datadir}/udav/, udav/udav_wnd.cpp
 
 # Disable contf.png generation (ends with segfault on koji)
-sed -i s, contf , , texinfo/CMakeLists.txt
+sed -i s', contf , ,' texinfo/CMakeLists.txt
 
 %build