Add -f -r flags to find-unused-errs

export X1=/tmp/f.1.$$

export X2=/tmp/f.2.$$

case "$1" in

    -f)

        PAT='_F_'

        echo Functions only

        ;;

    -[er])

        PAT='_R_'

        echo Reason codes only

        ;;

    "")

        PAT='_[FR]_'

        echo Function and reasons

        ;;

    *)

        echo "Usage error; one of -[efr] required."

        exit 1;

        ;;

esac

cd include/openssl || exit 1

grep '_[RF]_' * | awk '{print $3;}' | sort -u >$X1

grep "$PAT" *  | grep -v ERR_FATAL_ERROR | awk '{print $3;}' | sort -u >$X1

cd ../..

for F in `cat $X1` ; do