>> The original bug report was about "M-x lgrep".  Can we make this
>> change affect only that command?
>>
>> In any case, this is a user-visible change, so it should be called out
>> in NEWS.
>
> Yup, and yup.

The latest fix has two problems:

1. it runs grep-probe every time lgrep is used;
2. it adds --directories=skip to the end of the command after regexp and file names

This patch improves both: