[gnome-boxes] express,fedora: Correct usermod commandline

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit e80d016efba770fd4c6a10ead026daea5081c14c
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Sun Feb 26 21:15:57 2012 +0200

    express,fedora: Correct usermod commandline
    
    $ sudo usermod zeenix -a -G wheel
    usermod: user 'wheel' does not exist
    [zeenix z-laptop ISOs]$ sudo usermod -a -G wheel zeenix
    [zeenix z-laptop ISOs]$

 data/fedora.ks |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/fedora.ks b/data/fedora.ks
index 9d22972..4f23b91 100644
--- a/data/fedora.ks
+++ b/data/fedora.ks
@@ -40,7 +40,7 @@ xorg-x11-drv-qxl
 %post --erroronfail
 
 # Add user to admin group
-usermod BOXES_USERNAME -a -G wheel
+usermod -a -G wheel BOXES_USERNAME
 
 # Enable autologin
 echo "[daemon]