X-Git-Url: http://www.git.stargrave.org/?p=public-inbox.git;a=blobdiff_plain;f=lib%2FPublicInbox%2FMsgmap.pm;h=f15875e37cd8a88c2b74956301892d4198be541f;hp=d696ce837395bcbc0800a09e41290f8f1e5fee02;hb=2b52961cb0e77fc1645cc91318e3518f883313a3;hpb=670e37954c1d91fb096dfc8604c2d6ab81d03e08

diff --git a/lib/PublicInbox/Msgmap.pm b/lib/PublicInbox/Msgmap.pm
index d696ce83..f15875e3 100644
--- a/lib/PublicInbox/Msgmap.pm
+++ b/lib/PublicInbox/Msgmap.pm
@@ -91,6 +91,7 @@ sub last_commit_xap {
 	$self->meta_accessor("last_xap$version-$i", $commit);
 }
 
+# this is the UIDVALIDITY for IMAP (cf. RFC 3501 sec 2.3.1.1. item 3)
 sub created_at {
 	my ($self, $second) = @_;
 	$self->meta_accessor('created_at', $second);