Don't truncate tag and branch names after 30 chars (introduced 73860ffbe798)
with test added for a long (local) tag name.
Content-type: text/html; charset={encoding}
<?xml version="1.0" encoding="{encoding}"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
<head>
<link rel="icon" href="{url}static/hgicon.png" type="image/png">
<meta name="robots" content="index, nofollow"/>
<link rel="stylesheet" href="{url}static/style-gitweb.css" type="text/css" />