Merge pull request #1175 from rexkerr/sudo-usage-fix

Fix usage of sudo to edit file

Author: ben

book/04-git-server/sections/setting-up-server.asc

@@ -97,7 +97,7 @@ To do so, you must first add the full pathname of the `git-shell` command to `/e
 ----
 $ cat /etc/shells   # see if `git-shell` is already in there.  If not...
 $ which git-shell   # make sure git-shell is installed on your system.
-$ sudo vim /etc/shells  # and add the path to git-shell from last command
+$ sudo -e /etc/shells  # and add the path to git-shell from last command
 ----
 
 Now you can edit the shell for a user using `chsh <username> -s <shell>`: