xapp_xmag: fix build against Xmu by bumping version

Fix a build issue similar to the one encountered on xapp_listres at
http://autobuild.buildroot.org/results/06d0ef38165769df38047c1f64d4cfae835e9e54/.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/x11r7/xapp_xmag/xapp_xmag.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-XAPP_XMAG_VERSION = 1.0.2
+XAPP_XMAG_VERSION = 1.0.4
 XAPP_XMAG_SOURCE = xmag-$(XAPP_XMAG_VERSION).tar.bz2
 XAPP_XMAG_SITE = http://xorg.freedesktop.org/releases/individual/app
 XAPP_XMAG_DEPENDENCIES = xlib_libXaw