update doc

README.md

@@ -458,7 +458,6 @@ As you see, z.lua is the fastest one and requires less resource.
 
 ## History
 
-- 1.5.7 (2019-02-20): improve the result of `$_ZL_FZF_SORT`.
 - 1.5.6 (2019-02-20): set `$_ZL_FZF_SORT` to 1 to sort directories by alphabet in fzf.
 - 1.5.5 (2019-02-20): `$_ZL_FZF_FLAG` can be used to override fzf flags, default to "+s -e".
 - 1.5.4 (2019-02-19): fixed: file/path existence detection fails on read-only fs (closed [#49](https://github.com/skywind3000/z.lua/issues/49) by [@contrun](https://github.com/contrun)).

z.lua

@@ -4,7 +4,7 @@
 -- z.lua - a cd command that learns, by skywind 2018, 2019
 -- Licensed under MIT license.
 --
--- Version 1.5.7, Last Modified: 2019/02/20 23:15
+-- Version 1.5.6, Last Modified: 2019/02/20 23:30
 --
 -- * 10x faster than fasd and autojump, 3x faster than z.sh
 -- * available for posix shells: bash, zsh, sh, ash, dash, busybox
@@ -2000,7 +2000,7 @@ function z_shell_init(opts)
 		end
 		print(script_complete_bash)
 		if opts.fzf ~= nil then
-			fzf_cmd = "fzf --nth 2 --reverse --inline-info --tac "
+			fzf_cmd = "fzf --nth 2.. --reverse --inline-info --tac "
 			if not os.environ('_ZL_FZF_FULLSCR', false) then
 				fzf_cmd = fzf_cmd .. ' --height 35%'
 			end