user-manual: update for new default --track behavior

diff --git a/index-pack.c b/index-pack.c
index 82c8da3683bbda15a5f7476d93c14737617d3e49..8403c36b63c041fe0c81276391a0bbea906e833d 100644 (file)
--- a/index-pack.c
+++ b/index-pack.c
@@ -634,7 +634,8 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
                                write_or_die(keep_fd, keep_msg, keep_msg_len);
                                write_or_die(keep_fd, "\n", 1);
                        }
-                       close(keep_fd);
+                       if (close(keep_fd) != 0)
+                               die("cannot write keep file");
                        report = "keep";
                }
        }