Add sending date to notify message. When using SMTP, no date field was set into the message, which causes it to be displayed as being send on 1st january 1970 on most MUA.

#!/bin/sh

mkdir t
cd t
hg init
echo a > a
hg add a
hg commit -m test -d "1000000 0"
rm .hg/requires
hg tip
echo indoor-pool > .hg/requires
hg tip

true