Doc fix for forward-word and backward-word.

* doc/lispref/positions.texi (Word Motion): Remove redundant sentence.
* lisp/simple.el (backward-word): Mention the optional argument.
* src/syntax.c (forward_word): Mention the optional argument.

2 files changed, 2 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index a0a37f0628d..28e8ab66e37 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,6 @@
 2013-08-13  Xue Fuqiao  <xfq.free@gmail.com>
 
+        * syntax.c (forward_word):
         * cmds.c (forward_char, backward_char): Mention the optional argument.
 
 2013-08-13  Dmitry Antipov  <dmantipov@yandex.ru>
diff --git a/src/syntax.c b/src/syntax.c
index 6d52d115889..f5b37303a4a 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -1464,6 +1464,7 @@ scan_words (register ptrdiff_t from, register EMACS_INT count)
 
 DEFUN ("forward-word", Fforward_word, Sforward_word, 0, 1, "^p",
        doc: /* Move point forward ARG words (backward if ARG is negative).
+If ARG is omitted or nil, move point forward one word.
 Normally returns t.
 If an edge of the buffer or a field boundary is reached, point is left there
 and the function returns nil.  Field boundaries are not noticed if