[PATCH 2/3] gitweb: Use underscore instead of hyphen to separate words in HTTP headers names

[Jakub Narebski <jnareb@gmail.com>]

Use underscore (which will be turned into hyphen) to separate words in
HTTP header names, in keys to CGI header() method, consistently.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
---
Sometimes using quites for header() keys and sometimes not was not
a good practice.

Excerpt from CGI(3pm):

       The last example shows the named argument style for passing arguments to
       the CGI methods using named parameters.  Recognized parameters are -type,
       -status, -expires, and -cookie.  Any other named parameters will be
       stripped of their initial hyphens and turned into header fields, allowing
       you to specify any HTTP header you desire.  Internal underscores will be
       turned into hyphens:

           print header(-Content_length=>3002);


 gitweb/gitweb.perl |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 182fe33..f59213e 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -2202,7 +2202,8 @@ sub git_blob_plain {
 		$save_as .= '.txt';
 	}
 
-	print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
+	print $cgi->header(-type => "$type",
+	                   -content_disposition => "inline; filename=\"$save_as\"");
 	undef $/;
 	binmode STDOUT, ':raw';
 	print <$fd>;
@@ -2386,8 +2387,8 @@ sub git_snapshot {
 	my $filename = basename($project) . "-$hash.tar.$suffix";
 
 	print $cgi->header(-type => 'application/x-tar',
-	                   -content-encoding => $ctype,
-	                  '-content-disposition' => "inline; filename=\"$filename\"",
+	                   -content_encoding => $ctype,
+	                   -content_disposition => "inline; filename=\"$filename\"",
 	                   -status => '200 OK');
 
 	open my $fd, "-|", "$GIT tar-tree $hash \'$project\' | $command" or
@@ -2705,7 +2706,7 @@ sub git_commitdiff_plain {
 
 	print $cgi->header(-type => "text/plain",
 	                   -charset => 'utf-8',
-	                  '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
+	                   -content_disposition => "inline; filename=\"git-$hash.patch\"");
 	my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
 	my $comment = $co{'comment'};
 	print "From: $co{'author'}\n" .
-- 
1.4.1.1