[PATCH v3 2/6] sha1_file.c: keep a good name for "unknown" hash_algos[UNKNOWN]

[Nguyễn Thái Ngọc Duy]

This is mostly for displaying the hash algorithm name when we report
errors. Printing "unknown" with '%s' is much better than '(null)' in
glibc printf version (and probably could crash if other implementations
do not check for NULL pointer)

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 sha1_file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sha1_file.c b/sha1_file.c
index 826d7a0ae3..4b266b1c68 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -71,7 +71,7 @@ static void git_hash_unknown_final(unsigned char *hash, 
git_hash_ctx *ctx)
 
 const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
        {
-               NULL,
+               "unknown",
                0x00000000,
                0,
                0,
-- 
2.16.1.435.g8f24da2e1a