Update optional from master

This commit is contained in:
Automated Commit 2018-07-03 21:15:05 +00:00
parent dd6152d603
commit 219480e94f

@ -1 +1 @@
Subproject commit 8f992acb94abb2b3dccc773d78a35039a09857c2
Subproject commit 2854383cf7d929c336be67554fe7e39c4e1140a7