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"
hg verify
hg parents
hg status
hg rollback
hg verify
hg parents
hg status