diff -r 9ad06889a5d1 sys/man/4/rio
--- a/sys/man/4/rio	Mon Nov 18 01:06:02 2019 -0800
+++ b/sys/man/4/rio	Tue Nov 19 12:06:01 2019 +1030
@@ -210,7 +210,8 @@
 .I x
 and
 .IR y .
-Following these numbers are strings describing the window's state:
+Following these numbers are strings, also in 12-character style,
+describing the window's state:
 .B hidden
 or
 .BR visible ;