commit bash-20170525 snapshot

doc/bashref.texi

@@ -5359,6 +5359,11 @@ If enabled, and the @code{cmdhist}
 option is enabled, multi-line commands are saved to the history with
 embedded newlines rather than using semicolon separators where possible.
 
+@item localvar_inherit
+If set, local variables inherit the value and attributes of a variable of
+the same name that exists at a previous scope before any new value is
+assigned.  The @var{nameref} attribute is not inherited.
+
 @item login_shell
 The shell sets this option if it is started as a login shell
 (@pxref{Invoking Bash}).