From 0dc3b035e03a4028a22cd2a8b5f21086e3227047 Mon Sep 17 00:00:00 2001
From: Jeff King <peff@peff.net>
Date: Tue, 28 Mar 2017 15:46:53 -0400
Subject: combine-diff: replace malloc/snprintf with xstrfmt

There's no need to use the magic "100" when a strbuf can do
it for us.

Signed-off-by: Jeff King <peff@peff.net>

diff --git a/combine-diff.c b/combine-diff.c
index 59501db..d356057 100644
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -292,9 +292,10 @@ static char *grab_blob(const struct object_id *oid, unsigned int mode,
 	enum object_type type;
 
 	if (S_ISGITLINK(mode)) {
-		blob = xmalloc(100);
-		*size = snprintf(blob, 100,
-				 "Subproject commit %s\n", oid_to_hex(oid));
+		struct strbuf buf = STRBUF_INIT;
+		strbuf_addf(&buf, "Subproject commit %s\n", oid_to_hex(oid));
+		*size = buf.len;
+		blob = strbuf_detach(&buf, NULL);
 	} else if (is_null_oid(oid)) {
 		/* deleted blob */
 		*size = 0;
-- 
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