en/handbook/users: proposed corrections

[Warren Block]

On Thu, 28 Nov 2013, Taras Korenko wrote:

>  There's a second lap, which includes received suggestions.

One note:

@@ -960,7 +957,7 @@
      <para>In this example, the argument to <option>-m</option> is a
        comma-delimited list of users who are to be added to the group.
        Unlike the previous example, these users are appended to the
-      group list and do not replace the list of existing users in the
+      group and do not replace the list of existing users in the
        group.</para>

s/do not replace the list of/do not replace/

Otherwise, looks good!