[3699] Updated user guide: new logger for hosts added to the list.

doc/guide/logging.xml

@@ -170,6 +170,12 @@
             during DHCPv4 hooks operation, i.e. anything related to user
             libraries will be logged using this logger.</simpara>
           </listitem>
+          <listitem>
+            <simpara><command>kea-dhcp4.hosts</command> - this logger is used
+            within the libdhcpsrv and it logs messages related to the management
+            of the DHCPv4 host reservations, i.e. retrieval of the resevations
+            and adding new reservations.</simpara>
+          </listitem>
           <listitem>
             <simpara><command>kea-dhcp6</command> - this is the root logger for
             the DHCPv6 server. All components used by the DHCPv6 server inherit
@@ -192,6 +198,12 @@
             during DHCPv6 hooks operation, i.e. anything related to user
             libraries will be logged using this logger.</simpara>
           </listitem>
+          <listitem>
+            <simpara><command>kea-dhcp6.hosts</command> - this logger is used
+            within the libdhcpsrv and it logs messages related to the management
+            of the DHCPv6 host reservations, i.e. retrieval of the resevations
+            and adding new reservations.</simpara>
+          </listitem>
           <listitem>
             <simpara><command>kea-dhcp-ddns</command> - this is the root logger for
             the kea-dhcp-ddns deamon. All components used by this deamon inherit