tr's doc nits

[Alexandre Duret-Lutz]

Hello there,

I have coreutils 5.2.1 and texinfo 4.8 installed.

Two notes regarding tr's documentation:

1) "man tr" points to "info coreutils tr" but this commands
   brings me to the node "Trailing slashes" not to "tr invocation".

2) Node "Character sets" of the tr documentation states that

     GNU `tr' does not support the System V syntax that uses square
     brackets to enclose ranges.  Translations specified in that format
     sometimes work as expected, since the brackets are often
     transliterated to themselves.  However, they should be avoided
     because they sometimes behave unexpectedly.  For example, `tr -d
     '[0-9]'' deletes brackets as well as digits.

   however node "Putting the tools together" teaches you bad habits
   with many examples such as 

     $ tr '[A-Z]' '[a-z]' < whats.gnu | tr -cd '[A-Za-z0-9_ \012]' |
     > tr -s '[ ]' '\012' | ...

cheerio
-- 
Alexandre Duret-Lutz