[PATCH] gitweb: convert from perl internal to utf8 for commitdiff_plain

[Yasushi SHOJI <yashi@atmark-techno.com>]

commitdiff with raw, or plain format if you are reading the code,
doesn't convert any word from perl internal to utf8, which is set to
charset in http header.  this cause a problem when commit includes non
ascii code.

here is a few example in the git tree:

http://git.kernel.org/?p=git/git.git;a=commitdiff_plain;h=6ba78238a824282816944550edc4297dd2808a72
http://git.kernel.org/?p=git/git.git;a=commitdiff_plain;h=e360bebf713b6b03768c62de8b94ddf9350b0953
http://git.kernel.org/?p=git/git.git;a=commitdiff_plain;h=9459aa77a032621a29d53605542844641cca843a

This patch effectively revert the commitdiff plain part of the commit

	59b9f61a3f76762dc975e99cc05335a3b97ad1f9

which converted from print to here-doc. but it doesn't
explain why in the commit log.
---
 gitweb/gitweb.perl |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 6256641..5d9ac1d 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -5048,16 +5048,16 @@ sub git_commitdiff {
 			-expires => $expires,
 			-content_disposition => 'inline; filename="' . "$filename" . '"');
 		my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
-		print <<TEXT;
-From: $co{'author'}
-Date: $ad{'rfc2822'} ($ad{'tz_local'})
-Subject: $co{'title'}
-TEXT
+		print "From: " . to_utf8($co{'author'}) . "\n";
+		print "Date: " . to_utf8($ad{'rfc2822'}) . " "
+			       . to_utf8($ad{'tz_local'}) . "\n";
+		print "Subject: " . to_utf8($co{'title'}) . "\n";
+
 		print "X-Git-Tag: $tagname\n" if $tagname;
 		print "X-Git-Url: " . $cgi->self_url() . "\n\n";
 
 		foreach my $line (@{$co{'comment'}}) {
-			print "$line\n";
+			print to_utf8($line) . "\n";
 		}
 		print "---\n\n";
 	}
-- 
1.5.4.rc5.1.g0d200