[PATCH 04/10] combine-diff.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>
---
 combine-diff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/combine-diff.c b/combine-diff.c
index 8f2313d..a91d9b3 100644
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -293,7 +293,7 @@ static char *grab_blob(const struct object_id *oid, unsigned int mode,
 
 	if (S_ISGITLINK(mode)) {
 		blob = xmalloc(100);
-		*size = snprintf(blob, 100,
+		*size = xsnprintf(blob, 100,
 				 "Subproject commit %s\n", oid_to_hex(oid));
 	} else if (is_null_oid(oid)) {
 		/* deleted blob */
-- 
2.9.0.rc1.265.geb5d750