@noindent on a line by itself

[Nishio Futoshi]

Hi!

In texinfo,
    * Write a command such as address@hidden' at the beginning of a line as
     the only text on the line.  (address@hidden' prevents the beginning of
     the next line from being indented as the beginning of a paragraph.)
and
   * To prevent a paragraph from being indented in the printed manual,
     put the command address@hidden' on a line by itself before the
     paragraph.

However, I found many lines like this in texinfo.txi:
@noindent produces:

Which is better one line or two lines?
@noindent produces:
or
@noindent
produces:


And, in the "@node Sample Texinfo Files"'s sample, @node Top have no
@top command.

Thanks.

-- 
Nishio Futoshi <address@hidden>