don't escape . in titlepage conversion

diff --git a/ikiwiki b/ikiwiki
index 62a9767b9346bbad0cc4bd8a8c1ab4c3db6f6cb9..d1173d399fe330f503c173f916dca2ff5fe1851d 100755 (executable)
--- a/ikiwiki
+++ b/ikiwiki
@@ -255,7 +255,7 @@ sub pagetitle ($) { #{{{
 sub titlepage ($) { #{{{
        my $title=shift;
        $title=~y/ /_/;
-       $title=~s/([^-A-Za-z0-9_:+\/])/"__".ord($1)."__"/eg;
+       $title=~s/([^-A-Za-z0-9_:+\/.])/"__".ord($1)."__"/eg;
        return $title;
 } #}}}