Export add_autofile() for use in Plugins.

IkiWiki.pm

@@ -23,7 +23,7 @@ our @EXPORT = qw(hook debug error template htmlpage deptype
 		 htmllink readfile writefile pagetype srcfile pagename
 		 displaytime will_render gettext urlto targetpage
 		 add_underlay pagetitle titlepage linkpage newpagefile
-		 inject add_link
+		 inject add_link add_autofile
                  %config %links %pagestate %wikistate %renderedfiles
                  %pagesources %destsources);
 our $VERSION = 3.00; # plugin interface version, next is ikiwiki version

IkiWiki/Plugin/tag.pm

@@ -79,7 +79,7 @@ sub gentag ($) {
 		$template->param(tag => $tag);
 		writefile($tagfile, $config{srcdir}, $template->output);
 
-		IkiWiki::add_autofile("$config{srcdir}/$tagfile");
+		add_autofile("$config{srcdir}/$tagfile");
 	}
 }