Fixed syntax error

SiteTests/MonteCarlo/tests/CE-cms-mc

@@ -36,14 +36,13 @@ if [ -n "$OSG_GRID" ] ; then
 elif [ -n "$VO_CMS_SW_DIR" ] ; then
     echo "<p>gLite Middleware</p>"
     SW_DIR=$VO_CMS_SW_DIR
-    result=$?
 else
     echo "<p>ERROR: neither VO_CMS_SW_DIR nor OSG_APP defined</p>"
     exit $SAME_ERROR
 fi
 echo "<pre>"
 source $SW_DIR/cmsset_default.sh
-result=$(expr $? + $result)
+result=$?
 echo "</pre>"
 if [ $result != 0 ]
     then