prune: introduce OPT_EXPIRY_DATE() and use it

diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index db55a4e0bbc524c20f08e6862daaa97dd1785b71..f2e08d11c19cf127c5f7d484b0c3d66fc475d547 100644 (file)
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -117,7 +117,7 @@ returns an empty string instead.
 
 As a special case for the date-type fields, you may specify a format for
 the date by adding one of `:default`, `:relative`, `:short`, `:local`,
-`:iso8601` or `:rfc2822` to the end of the fieldname; e.g.
+`:iso8601`, `:rfc2822` or `:raw` to the end of the fieldname; e.g.
 `%(taggerdate:relative)`.