http: fix superfluous null line in range request header

At least the apache sever is very unhappy with that extra null line and will take more than ten seconds in responding to each range request, which slows down a lot the entire http file transfer process or even time out.

http: fix superfluous null line in range request header
abf9beb7 · Michael Chang · Andrei Borzenkov · f4d35d49 · abf9beb7
Commit abf9beb7 authored Apr 06, 2016 by Michael Chang Committed by Andrei Borzenkov Apr 09, 2016
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http.c grub-core/net/http.c +1 -2

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--- a/grub-core/net/http.c
+++ b/grub-core/net/http.c
@@ -381,9 +381,8 @@ http_establish (struct grub_file *file, grub_off_t offset, int initial)
      ptr = nb->tail;
      grub_snprintf ((char *) ptr,
 		     sizeof ("Range: bytes=XXXXXXXXXXXXXXXXXXXX-"
-			     "\r\n"
 			     "\r\n"),
-		     "Range: bytes=%" PRIuGRUB_UINT64_T "-\r\n\r\n",
+		     "Range: bytes=%" PRIuGRUB_UINT64_T "-\r\n",
 		     offset);
      grub_netbuff_put (nb, grub_strlen ((char *) ptr));
    }