Show the same recommended example file in all three man pages, just
highlight the different, relevant parts.
This should be less confusing for users, and clarify what we actually
recommend how /etc/nsswitch.conf is set up.
<para>Here's an example <filename>/etc/nsswitch.conf</filename>
file, that enables <command>myhostname</command> correctly:</para>
-<programlisting>passwd: compat
-group: compat
+<programlisting>passwd: compat mymachines
+group: compat mymachines
shadow: compat
hosts: files resolve mymachines <command>myhostname</command>
<para>Here's an example <filename>/etc/nsswitch.conf</filename>
file, that enables <command>resolve</command> correctly:</para>
-<programlisting>passwd: compat
-group: compat
+<programlisting>passwd: compat mymachines
+group: compat mymachines
shadow: compat
hosts: files <command>resolve</command> mymachines myhostname