improve regexp

diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm
index 54c526c2cbf6402b4cf8205d6cb1caef8db48dac..d29151ace59356bf2f548592f08f2d46da3ca83a 100644 (file)
--- a/IkiWiki/CGI.pm
+++ b/IkiWiki/CGI.pm
@@ -657,7 +657,7 @@ sub userlink ($) { #{{{
                my $display=$oid->display;
                # Convert "user.somehost.com" to "user [somehost.com]".
                if ($display !~ /\[/) {
-                       $display=~s/^(.*?)\.([^.]+.[^.]+)$/$1 [$2]/;
+                       $display=~s/^(.*?)\.([^.]+\.[a-z]+)$/$1 [$2]/;
                }
                return "<a href=\"$user\">".escapeHTML($display)."</a>";
        }