Getting rid of ^M?

Hi there,

The http://www.iso.org/iso/iso3166_en_code_lists.txt
(ISO country codes
and 
names) has a trailing ^M on each line, currently filtering it like this:

FILENAME == "isocc" && FNR > 1 {        # there's a ; in the top comment
line
        split($0, k, ";")
        if (! k[2])			# skip blank line, it has a ^M
                next
        n = titlecase(k[1])
        cc = substr(k[2], 1, 2)         # lose trailing ^M
        printf "%s:%s\n", cc, n > outcntmp
}

What's a more general way to filter out trailing ^M please?

Grant.
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