Use roxygen2 version 7.1.1

stewid · stewid · commit 9e44f868fd67 · 2020-12-21T23:50:25.000+01:00
diff --git a/DESCRIPTION b/DESCRIPTION
@@ -67,4 +67,4 @@ Collate:
     'tree.R'
     'when.R'
 Encoding: UTF-8
-RoxygenNote: 7.1.0
+RoxygenNote: 7.1.1
