[PATCH 07/10] fast-import.c: convert trivial snprintf calls to xsnprintf

[Elia Pinto <gitter.spiros@gmail.com>]

With the commits f2f02675 and 5096d490 we have been converted in some files the call
from snprintf/sprintf/strcpy to xsnprintf. This patch converts the remaining calls
to snprintf with xsnprintf under the following conditions:

- The call to snprintf does not control the outcome of the command
  or the presence of truncation errors.
- A call to snprintf can generate a fatal error, directly or indirectly.

The other few remaining cases in which a call to snprintf can generate a soft error
have not been changed.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
---
 fast-import.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/fast-import.c b/fast-import.c
index 59630ce..5beb63d 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -1240,10 +1240,7 @@ static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
 	sha1file_checkpoint(pack_file, &checkpoint);
 	offset = checkpoint.offset;
 
-	hdrlen = snprintf((char *)out_buf, out_sz, "blob %" PRIuMAX, len) + 1;
-	if (out_sz <= hdrlen)
-		die("impossibly large object header");
-
+	hdrlen = xsnprintf((char *)out_buf, out_sz, "blob %" PRIuMAX, len) + 1;
 	git_SHA1_Init(&c);
 	git_SHA1_Update(&c, out_buf, hdrlen);
 
-- 
2.9.0.rc1.265.geb5d750