do not segfault if make_cache_entry failed

diff --git a/archive.c b/archive.c
index 5b40e261f10e42b9f9ee9b4dbfe231765156bf64..44ab008039854b7c585adf53bee195b81f4e18c7 100644 (file)
--- a/archive.c
+++ b/archive.c
@@ -15,7 +15,7 @@ static char const * const archive_usage[] = {
 
 #define USES_ZLIB_COMPRESSION 1
 
-const struct archiver {
+static const struct archiver {
        const char *name;
        write_archive_fn_t write_archive;
        unsigned int flags;
@@ -48,7 +48,7 @@ static void format_subst(const struct commit *commit,
                strbuf_add(&fmt, b + 8, c - b - 8);
 
                strbuf_add(buf, src, b - src);
-               format_commit_message(commit, fmt.buf, buf);
+               format_commit_message(commit, fmt.buf, buf, DATE_NORMAL);
                len -= c + 1 - src;
                src  = c + 1;
        }