tlpretest19

[Markus Kohm]

Maybe you should update the expire date of the "build-in" gpg key before 
release:

$ tlmgr key list
/usr/local/texlive/2019/tlpkg/gpg/pubring.gpg
---------------------------------------------
pub   rsa2048 2016-03-19 [SC]
      C78B82D8C79512F79CC0D7C80D5E5D9106BAB6BC
uid        [ ultimativ ] TeX Live Distribution <tex-live at tug.org>
sub   rsa2048 2016-03-19 [E]
sub   rsa2048 2016-03-19 [S] [verfällt: 2019-08-31]
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: This is a digitally signed message part.
URL: <https://tug.org/pipermail/tex-live/attachments/20190301/a8f666c3/attachment.sig>