* variables.texi (File Local Variables):
Update hack-local-variables `mode-only' return value.
+ Add some more details on what this function does in the other case.
2011-05-19 Glenn Morris <rgm@gnu.org>
@code{file-local-variables-alist} and applying each local variable in
turn. It calls @code{before-hack-local-variables-hook} and
@code{hack-local-variables-hook} before and after applying the
-variables, respectively.
+variables, respectively. It only calls the before-hook if the alist
+is non-@code{nil}; it always calls the other hook. This
+function ignores a @samp{mode} element if it specifies the same major
+mode as the buffer already has.
If the optional argument @var{mode-only} is non-@code{nil}, then all
this function does is return a symbol specifying the major mode,