create_snapshot(): use `xmemdupz()` rather than a strbuf

diff --git a/refs/packed-backend.c b/refs/packed-backend.c
index 26b890118cb1de1335ee5ba388645516b5446dcf..8beb99652f5d79a92cc7b61359bc08ab3067bfca 100644 (file)
--- a/refs/packed-backend.c
+++ b/refs/packed-backend.c
@@ -620,8 +620,7 @@ static struct snapshot *create_snapshot(struct packed_ref_store *refs)
 
        /* If the file has a header line, process it: */
        if (snapshot->buf < snapshot->eof && *snapshot->buf == '#') {
-               struct strbuf tmp = STRBUF_INIT;
-               char *p, *eol;
+               char *tmp, *p, *eol;
                struct string_list traits = STRING_LIST_INIT_NODUP;
 
                eol = memchr(snapshot->buf, '\n',
@@ -631,9 +630,9 @@ static struct snapshot *create_snapshot(struct packed_ref_store *refs)
                                              snapshot->buf,
                                              snapshot->eof - snapshot->buf);
 
-               strbuf_add(&tmp, snapshot->buf, eol - snapshot->buf);
+               tmp = xmemdupz(snapshot->buf, eol - snapshot->buf);
 
-               if (!skip_prefix(tmp.buf, "# pack-refs with:", (const char **)&p))
+               if (!skip_prefix(tmp, "# pack-refs with:", (const char **)&p))
                        die_invalid_line(refs->path,
                                         snapshot->buf,
                                         snapshot->eof - snapshot->buf);
@@ -653,7 +652,7 @@ static struct snapshot *create_snapshot(struct packed_ref_store *refs)
                snapshot->start = eol + 1;
 
                string_list_clear(&traits, 0);
-               strbuf_release(&tmp);
+               free(tmp);
        }
 
        verify_buffer_safe(snapshot);