[gmime] Don't write out extra spaces in the References header

[Jeffrey Stedfast <fejj src gnome org>]

commit cc96162a47bd88ba76cece5043a93b438e48c2c7
Author: Jeffrey Stedfast <fejj gnome org>
Date:   Sat Nov 2 16:08:52 2013 -0400

    Don't write out extra spaces in the References header
    
    2013-11-02  Jeffrey Stedfast  <fejj gnome org>
    
        * gmime/gmime-message.c (write_references): Don't write out 2
        spaces between the ':' and the first message-id. Fixes bug
        #711305.

 ChangeLog             |    6 ++++++
 gmime/gmime-message.c |    2 +-
 2 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index d6b7653..4964048 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2013-11-02  Jeffrey Stedfast  <fejj gnome org>
+
+       * gmime/gmime-message.c (write_references): Don't write out 2
+       spaces between the ':' and the first message-id. Fixes bug
+       #711305.
+
 2013-10-19  Jeffrey Stedfast  <fejj gnome org>
 
        * README: Bumped version
diff --git a/gmime/gmime-message.c b/gmime/gmime-message.c
index b6243fd..3b00ee1 100644
--- a/gmime/gmime-message.c
+++ b/gmime/gmime-message.c
@@ -636,7 +636,7 @@ write_references (GMimeStream *stream, const char *name, const char *value)
           it seems to break a lot of clients (and servers) */
        references = g_mime_references_decode (value);
        folded = g_string_new (name);
-       g_string_append_len (folded, ": ", 2);
+       g_string_append_c (folded, ':');
        len = folded->len;
        
        reference = references;