remove doubling of classes when gatherin the distinfo

gatherer/dist_information.sh

@@ -87,7 +87,7 @@ gather_dist_info() {
 				eval ${GREP} -iq ${DIST} \${FILES_${CHK}} || DIST="Unknown"
 			fi
 
-			set_class ${CLASSES} ${DIST};;
+			set_class ${DIST};;
 		*)
 			DIST="${OS}"
 	esac