templates: fix broken "less" & "more" links in paper style (issue4460) "/search", which is an invalid command in hgweb, was mistakenly used for "[show] more [revsets]" and "[show] less [revsets]" links on search page in templates "paper" (and those which inherit paper, such as coal) before and worked fine until 6e1fbcb18a75, which made hgweb more strict about invalid commands.