bug#11862: [PATCH 7/9] doc/lispref/intro.texi: `optional' -> `&optional';

[Michael Witten]

In particular, the word `rest' as used in the original text is quite
jarring to read, so the more explicit `&rest' is introduced by this
commit. For completeness, the word `optional' is likewise replaced
with `&optional'.

Also, a spurious comma after the cross reference has been removed,
and the word ordering rearranged for simplicity.
---
 doc/lispref/intro.texi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/lispref/intro.texi b/doc/lispref/intro.texi
index f680688..f749401 100644
--- a/doc/lispref/intro.texi
+++ b/doc/lispref/intro.texi
@@ -390,8 +390,8 @@ specifically in the description of the function.  In some 
sections,
 features common to the arguments of several functions are described at
 the beginning.
 
-  @xref{Lambda Expressions}, for a more complete description of optional
-and rest arguments.
+  @xref{Lambda Expressions} for a more complete description of arguments
+modified by @code{&optional} and @code{&rest}.
 
   Command, macro, and special form descriptions have the same format,
 but the word `Function' is replaced by `Command', `Macro', or `Special
-- 
1.7.11.1.29.gf71be5c