Merge pull request #2023 from trevorjobling/patch-1

Clarify that --global configuration is not applicable system-wide

Author: ben

book/01-introduction/sections/first-time-setup.asc

@@ -42,7 +42,7 @@ $ git config --global user.name "John Doe"
 $ git config --global user.email [email protected]
 ----
 
-Again, you need to do this only once if you pass the `--global` option, because then Git will always use that information for anything you do on that system.
+Again, you need to do this only once if you pass the `--global` option, because then Git will always use that information for your user on that system.
 If you want to override this with a different name or email address for specific projects, you can run the command without the `--global` option when you're in that project.
 
 Many of the GUI tools will help you do this when you first run them.