[libsoup] soup-multipart: remove extra CRLF before multipart body

[Dan Winship <danw src gnome org>]

commit 8569d007dbffc7096b1eb47004381deb8397426f
Author: Dan Winship <danw gnome org>
Date:   Tue Apr 6 12:29:01 2010 -0400

    soup-multipart: remove extra CRLF before multipart body
    
    HTTP multiparts should have no preamble, so it shouldn't have the
    leading CRLF either
    
    https://bugzilla.gnome.org/show_bug.cgi?id=614183

 libsoup/soup-multipart.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/libsoup/soup-multipart.c b/libsoup/soup-multipart.c
index f825a9d..9223f1d 100644
--- a/libsoup/soup-multipart.c
+++ b/libsoup/soup-multipart.c
@@ -437,7 +437,8 @@ soup_multipart_to_message (SoupMultipart *multipart,
 		part_headers = multipart->headers->pdata[i];
 		part_body = multipart->bodies->pdata[i];
 
-		str = g_string_new ("\r\n--");
+		str = g_string_new (i == 0 ? NULL : "\r\n");
+		g_string_append (str, "--");
 		g_string_append (str, multipart->boundary);
 		g_string_append (str, "\r\n");
 		soup_message_headers_iter_init (&iter, part_headers);