mail/rainloop needs a commiter

[loic.blot at unix-experience.fr]

Hello,
can someone push the following diff ?
I validated it and it could be commited to ports free

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212915 (https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212915)

Thanks !

Loïc Blot