The attached patch provides a modification to the recent fix/improvement
to do_grep already included in the most recent development version.
The original fix added new functionality to the grep function by adding
a new parameter, 'invert'. In the source code for the underlying
do_grep, the value
Attached is a suggested patch for src/main/character.c. It does not fix
a bug, but rather provides an improvement on the recent extension of
do_grep.
In essence, instead of four occurences of 'invert ^ LOGICAL(ind)[i]'
that accommodate for the option 'invert' added to grep, there is one
occurence
