bug#42750: 26.3; Elisp manual, `Lambda Components' and `Defining Functions'

[Drew Adams <drew.adams@oracle.com>]

Also, the name of topic/node `Argument List'
that's written in the node itself is `Other
Features of Argument Lists'.  That seems wrong.

The content of the node is not "other" features
about argument lists; it's just argument lists.

As it says, it specifies "the complete syntax
for an argument list".  Complete, not just some
"other".

IMO it should be called `Argument List' or
`Lambda List' or some such.  It doesn't matter
that it follows an introductory `Simple Lambda'
node, whose full title is anyway `A Simple
Lambda Expression Example'.