kernel_update: add update repo if needed

bin/epm-kernel_update

 #!/bin/sh
 #
-# Copyright (C) 2013, 2016  Etersoft
-# Copyright (C) 2013, 2016  Vitaly Lipatov <lav@etersoft.ru>
+# Copyright (C) 2013, 2016, 2017  Etersoft
+# Copyright (C) 2013, 2016, 2017  Vitaly Lipatov <lav@etersoft.ru>
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -17,9 +17,11 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 #
 
+load_helper epm-check_updated_repo
+
 epm_kernel_update()
 {
-	info "Starting update system kernel to the latest version"
+	info "Updating system kernel to the latest version..."
 
 	case $DISTRNAME in
 	ALTLinux)
@@ -29,6 +31,7 @@ epm_kernel_update()
 			return
 		fi
 		assure_exists update-kernel update-kernel 0.9.9
+		update_repo_if_needed
 		sudocmd update-kernel $pkg_filenames || return
 		docmd epm remove-old-kernels $pkg_filenames || fatal
 		return ;;