improve clink 1.1 compatibility

Add flags to the `z` arg matcher for Clink.

z.lua

@@ -4,7 +4,7 @@
 -- z.lua - a cd command that learns, by skywind 2018, 2019, 2020
 -- Licensed under MIT license.
 --
--- Version 1.8.9, Last Modified: 2020/12/23 16:37
+-- Version 1.8.10, Last Modified: 2020/12/23 16:37
 --
 -- * 10x faster than fasd and autojump, 3x faster than z.sh
 -- * available for posix shells: bash, zsh, sh, ash, dash, busybox
@@ -2081,6 +2081,8 @@ function z_clink_init()
 	end
 	local z_parser = clink.arg.new_parser()
 	z_parser:set_arguments({ z_match_completion })
+	z_parser:set_flags("-c", "-r", "-i", "--cd", "-e", "-b", "--add", "-x", "--purge", 
+		"--init", "-l", "-s", "--complete", "--help", "-h")
 	clink.arg.register_parser("z", z_parser)
 end