We normally wrap text at 72, but the <textarea> can be wider
in case there's long words which aren't broken apart.
With w3m, the enclosing `[' and `]' take up two columns
combined, so it works out to maximizing a standard 80-column
terminal.
print $zfh <<EOM;
<hr><form action="$ibx_url"
id=related><pre>find related emails, including ancestors/descendants/conflicts
-<textarea name=q cols=${\PublicInbox::View::COLS} rows=$rows>$q</textarea>
+<textarea name=q cols=78 rows=$rows>$q</textarea>
<input type=submit value="search$alt"
/>\t(<a href="${ibx_url}_/text/help/">help</a>)</pre></form>
EOM