Use OpenBSD 6.3.

Greg Steuck · Greg Steuck · commit 3e19370ce03a · 2018-09-03T14:27:32.000-07:00
diff --git a/env/openbsd-amd64/make.bash b/env/openbsd-amd64/make.bash
@@ -8,7 +8,7 @@
 set -e
 set -u
 
-readonly VERSION="6.2"
+readonly VERSION="6.3"
 readonly RELNO="${VERSION/./}"
 
 readonly ARCH="${ARCH:-amd64}"
