po: syntax warning fix

Signed-off-by: intrigeri <intrigeri@boum.org>

diff --git a/IkiWiki/Plugin/po.pm b/IkiWiki/Plugin/po.pm
index 2f6c89b4d7048c36e4a4a7a9f78901ed08cd6663..9dc4061efd6241633910ce38f96fe4203de05183 100644 (file)
--- a/IkiWiki/Plugin/po.pm
+++ b/IkiWiki/Plugin/po.pm
@@ -115,9 +115,9 @@ sub checkconfig () { #{{{
            ! defined $config{po_link_to}) {
                $config{po_link_to}='default';
        }
-       elsif ($config{po_link_to} != 'default'
-           && $config{po_link_to} != 'current'
-           && $config{po_link_to} != 'negotiated') {
+       elsif (! grep {
+                       $config{po_link_to} eq $_
+               } ('default', 'current', 'negotiated')) {
                warn(sprintf(gettext('po_link_to=%s is not a valid setting, falling back to po_link_to=default'),
                                $config{po_link_to}));
                $config{po_link_to}='default';