Re: fix portcheck false positive about files not being installed in icons subdir

[Stuart Henderson]

less bogus whining from portcheck is good!

> +               share/icons/*.@(png|svg|svgz|icon))

looking at pkglocate share/icons/|sed 's/^.*\.//'|sort|uniq -c|sort -nr,
could you add xpm and ico please?

ok.