K 10
svn:author
V 3
cmt
K 8
svn:date
V 27
2019-12-17T15:49:35.166335Z
K 7
svn:log
V 205
MFH: r520289

mail/thunderbird: upgrade to 68.3.1 (rc1)

Release Notes (soon):
  https://www.thunderbird.net/en-US/thunderbird/68.3.1/releasenotes/

Approved by:	ports-secteam (blanket: web browser alike)

END