am: refactor read_author_script()

diff --git a/builtin/mktag.c b/builtin/mktag.c
index 324a267163d758b5dea51405265ae89042a657ad..031b750f068dea5e1652129a5df6d684f6bca850 100644 (file)
--- a/builtin/mktag.c
+++ b/builtin/mktag.c
@@ -23,8 +23,8 @@ static int verify_object(const unsigned char *sha1, const char *expected_type)
        int ret = -1;
        enum object_type type;
        unsigned long size;
-       const unsigned char *repl;
-       void *buffer = read_sha1_file_repl(sha1, &type, &size, &repl);
+       void *buffer = read_sha1_file(sha1, &type, &size);
+       const unsigned char *repl = lookup_replace_object(sha1);
 
        if (buffer) {
                if (type == type_from_string(expected_type))
@@ -154,7 +154,7 @@ int cmd_mktag(int argc, const char **argv, const char *prefix)
        unsigned char result_sha1[20];
 
        if (argc != 1)
-               usage("git mktag < signaturefile");
+               usage("git mktag");
 
        if (strbuf_read(&buf, 0, 4096) < 0) {
                die_errno("could not read from stdin");