gitweb: uniform author info for commit and commitdiff

Switch from 'log'-like layout

    A U Thor <email@example.com> [date time]

to 'commit'-like layout

    author    A U Thor <email@example.com>
              date time
    committer C O Mitter <other.email@example.com>
              committer date time

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

gitweb/gitweb.perl

@@ -5596,7 +5596,11 @@ sub git_commitdiff {
 		git_header_html(undef, $expires);
 		git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
 		git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
-		git_print_authorship(\%co, -localtime => 1);
+		print "<div class=\"title_text\">\n" .
+		      "<table class=\"object_header\">\n";
+		git_print_authorship_rows(\%co);
+		print "</table>".
+		      "</div>\n";
 		print "<div class=\"page_body\">\n";
 		if (@{$co{'comment'}} > 1) {
 			print "<div class=\"log\">\n";