From d78afd22ac65eac3ffa9392e5fb5d88b30ec6e41 Mon Sep 17 00:00:00 2001
From: Jim Huang <jserv.tw@gmail.com>
Date: Sat, 19 Mar 2022 02:26:43 +0800
Subject: [PATCH] Tweak the style of sudoers file

---
 lkmpg.tex | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/lkmpg.tex b/lkmpg.tex
index c216afb..c6cbfa0 100644
--- a/lkmpg.tex
+++ b/lkmpg.tex
@@ -323,13 +323,10 @@ However, there are three ways to solve this problem.
   \item {You can preserve environment variables by appending them to \verb|env_keep| in \verb|/etc/sudoers|. 
   
   \begin{code}
-  ## sudoers file.
-  ##
-  ...
-  Defaults env_keep += ``ftp_proxy http_proxy https_proxy no_proxy PWD''
+  Defaults env_keep += "PWD"
   \end{code}
 
-  After finishing setting modification, you can check the environment variable settings by:
+  After applying the above change, you can check the environment variable settings by:
 
   \begin{verbatim}
     $ sudo -s