[fix] Move root check to top of so-setup

setup/so-setup

@@ -15,7 +15,15 @@
 #    You should have received a copy of the GNU General Public License
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# Make sure you are root before doing anything
+uid="$(id -u)"
+if [ "$uid" -ne 0 ]; then
+	echo "This script must be run using sudo!"
+	exit 1
+fi
+
 cd "$(dirname "$0")" || exit 255
+
 source ./so-functions
 source ./so-common-functions
 source ./so-whiptail