Description of problem:
It's intended that you should be able to specify a different xorg.conf for rhgb
than for X as a whole. However, the patch "rhgb-modularx.patch" (which was
probably added in January) contains the following lines, among others:

-#define X_CONFIG "/etc/rhgb/xorg.conf"
-#define XLOGFILE TMPPATH"/XFree86.0.log"
+#define X_CONFIG "/etc/rhgb/xorg .conf"
+#define XLOGFILE TMPPATH"/xorg.log"

So it's looking for a config file "xorg .conf" with a space, which is probably
wrong.

Version-Release number of selected component (if applicable):
rhgb-0.16.3-1.fc5.1

How reproducible:
Always

Steps to Reproduce:
1. Create custom /etc/rhgb/xorg.conf
  
Actual results:
rhgb still uses default xorg.conf

Expected results:
rhgb should use the new one!