Change tab to space in gv_user_res.dat
http://savannah.gnu.org/patch/?7998
https://src.fedoraproject.org/rpms/gv/blob/rawhide/f/gv-dat.patch

--- a/src/gv_user_res.dat
+++ b/src/gv_user_res.dat
@@ -39,7 +39,7 @@
 			save_marked
 GV.scale:		0
 GV.scaleBase:		1
-GV.scales:		Natural	size,	1.000,	screen	\n\
+GV.scales:		Natural size,	1.000,	screen	\n\
 			Pixel based,	1.000,	pixel	\n\
 			Arbitrary magnification,	-2		\n\
 			Fit height to window,	-3		\n\