date: clarify --date=raw description

diff --git a/cache.h b/cache.h
index c73becbf2dc8ae939116617e36c76afa60857cef..ace7f70e3b6eb30740c3964c80333c2572496d6b 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -1223,7 +1223,8 @@ struct date_mode {
                DATE_ISO8601_STRICT,
                DATE_RFC2822,
                DATE_STRFTIME,
-               DATE_RAW
+               DATE_RAW,
+               DATE_UNIX
        } type;
        const char *strftime_fmt;
        int local;