--regextype twice in doc

[Karl Berry]

In 4.2.25, the `Invoking locate' node has two entries for --regextype
(right next to each other):

`--regextype'
     This option changes the regular expression dialect used.  Dialects
     understood are described in *Note Regular Expressions::.

`--regextype'
     This option changes the regular expression syntax and behaviour
     used by the `--regex' option.  *Note Regular Expressions:: for more
     information on the regular expression dialects understood by GNU
     findutils.

Cheers,
k