Bug 822547: Fix POD coverage bustage

Bugzilla.pm

@@ -943,6 +943,10 @@ this Bugzilla installation.
 Tells you whether or not a specific feature is enabled. For names
 of features, see C<OPTIONAL_MODULES> in C<Bugzilla::Install::Requirements>.
 
+=item C<clear_request_cache>
+
+Removes all entries from the C<request_cache>.
+
 =back
 
 =head1 B<Methods in need of POD>

t/011pod.t

@@ -30,6 +30,7 @@ use constant DEFAULT_WHITELIST => qr/^(?:new|new_from_list|check|run_create_vali
 use constant SUB_WHITELIST => (
     'Bugzilla::Flag'     => qr/^(?:(force_)?retarget|force_cleanup)$/,
     'Bugzilla::FlagType' => qr/^sqlify_criteria$/,
+    'Bugzilla::JobQueue' => qr/^work_once$/,
 );
 
 # These modules do not need to be documented, generally because they