GitLab

* lisp/mail/feedmail.el (feedmail-fiddle-from):
* lisp/mail/rmail.el (rmail-unknown-mail-followup-to):
* lisp/mail/rmailsum.el (rmail-header-summary):
Belated update for 2002-09-29 startup.el change, 680ebfa6, where
the value of user-mail-address during initialization was changed
from nil to the empty string.