Minor improvements in manuals

* doc/lispref/variables.texi (Local Variables): Make more clear
that local bindings of 'let' are in effect only within the body.
Suggested by Marcin Borkowski <mbork@mbork.pl>, see
http://lists.gnu.org/archive/html/emacs-devel/2018-03/msg00217.html
for the details.

* doc/emacs/programs.texi (Matching): Fix a typo.  Reported by
Alex Branham <alex.branham@gmail.com> in emacs-manual-bugs@gnu.org.
Improve indexing.

1 files changed, 3 insertions, 2 deletions

diff --git a/doc/lispref/variables.texi b/doc/lispref/variables.texi
index e025d3fd10b..aecee6f3056 100644
--- a/doc/lispref/variables.texi
+++ b/doc/lispref/variables.texi
@@ -165,7 +165,7 @@ receive local values, which are the actual arguments supplied to the
 function call; these local bindings take effect within the body of the
 function.  To take another example, the @code{let} special form
 explicitly establishes local bindings for specific variables, which
-take effect within the body of the @code{let} form.
+take effect only within the body of the @code{let} form.
 
   We also speak of the @dfn{global binding}, which is where
 (conceptually) the global value is kept.
@@ -204,7 +204,8 @@ bindings:
 This special form sets up local bindings for a certain set of
 variables, as specified by @var{bindings}, and then evaluates all of
 the @var{forms} in textual order.  Its return value is the value of
-the last form in @var{forms}.
+the last form in @var{forms}.  The local bindings set up by @code{let}
+will be in effect only within the body of @var{forms}.
 
 Each of the @var{bindings} is either @w{(i) a} symbol, in which case
 that symbol is locally bound to @code{nil}; or @w{(ii) a} list of the