Add resent header weeding, used by sendbox

Signed-off-by: Aron Griffis <agrif...@n01se.net>

diff -r bffd60d2ac16 -r 4119b2394228 copy.c
--- a/copy.c    Tue Apr 28 11:17:28 2009 -0400
+++ b/copy.c    Tue Apr 28 11:17:31 2009 -0400
@@ -65,7 +65,8 @@
   buf[0] = '\n';
   buf[1] = 0;
 
-  if ((flags & (CH_REORDER | CH_WEED | CH_MIME | CH_DECODE | CH_PREFIX | CH_WEED_DELIVERED)) == 0)
+  if ((flags & (CH_REORDER | CH_WEED | CH_MIME | CH_DECODE | CH_PREFIX | 
+               CH_WEED_DELIVERED | CH_WEED_RESENT)) == 0)
   {
     /* Without these flags to complicate things
      * we can do a more efficient line to line copying
@@ -194,6 +195,10 @@
       if ((flags & CH_WEED_DELIVERED) &&
 	  ascii_strncasecmp ("Delivered-To:", buf, 13) == 0)
 	continue;
+      if ((flags & CH_WEED_RESENT) &&
+         (ascii_strncasecmp ("Resent-To:", buf, 10) == 0 ||
+          ascii_strncasecmp ("Resent-From:", buf, 12) == 0))
+       continue;
       if ((flags & (CH_UPDATE | CH_XMIT | CH_NOSTATUS)) &&
 	  (ascii_strncasecmp ("Status:", buf, 7) == 0 ||
 	   ascii_strncasecmp ("X-Status:", buf, 9) == 0))
diff -r bffd60d2ac16 -r 4119b2394228 copy.h
--- a/copy.h    Tue Apr 28 11:17:28 2009 -0400
+++ b/copy.h    Tue Apr 28 11:17:31 2009 -0400
@@ -53,6 +53,7 @@
 #define CH_UPDATE_IRT     (1<<16) /* update In-Reply-To: */
 #define CH_UPDATE_REFS    (1<<17) /* update References: */
 #define CH_DISPLAY        (1<<18) /* display result to user */
+#define CH_WEED_RESENT    (1<<19) /* weed Resent-To: header */
 
 
 int mutt_copy_hdr (FILE *, FILE *, LOFF_T, LOFF_T, int, const char *);