application-settable readline timeouts

doc/bash.1

@@ -10870,7 +10870,7 @@ or
 are unset, they lose their special properties, even if they are
 subsequently reset.  The exit status is true unless a
 .I name
-is readonly.
+is readonly or may not be unset.
 .TP
 \fBwait\fP [\fB\-fn\fP] [\fP\-p\fP \fIvarname\fP] [\fIid ...\fP]
 Wait for each specified child process and return its termination status.

doc/bashref.texi

@@ -4033,7 +4033,7 @@ unset.
 Readonly variables and functions may not be unset.
 Some shell variables lose their special behavior if they are unset; such
 behavior is noted in the description of the individual variables.
-The return status is zero unless a @var{name} is readonly.
+The return status is zero unless a @var{name} is readonly or may not be unset.
 @end table
 
 @node Bash Builtins