mention automatic height/width in whiptail man page

diff --git a/whiptail.1 b/whiptail.1
index ea212a8edf0d3a707cb5e3aada0fc6ef92d346c4..50d26090b28b892d76974678db2db5d11b7ec8e2 100644 (file)
--- a/whiptail.1
+++ b/whiptail.1
@@ -290,6 +290,11 @@ To avoid this, and start some text in, for example, a menubox item, with a
 dash, whiptail honours the getopt convention of accepting the special
 argument "\-\-" which means that all following arguments with dashes are to
 be treated verbatim and not parsed as options.
+
+If the specified height, width, or menu/list-height is zero,
+.BR whiptail
+will increase the values as needed in order to display all information.
+
 .SH DIAGNOSTICS
 Exit status is 0 if
 .BR whiptail " is exited by pressing the " Yes " or " OK