Updating lib-core

Hainish · Hainish · commit 97a1bc0da020 · 2019-07-20T11:50:46.000-07:00
diff --git a/lib-core b/lib-core
@@ -1 +1 @@
-Subproject commit 81831299c1e68431c6371b4656b4e09da74b1438
+Subproject commit 675743998ea285bb2a1df1b42308afabab4f93cd
