sysutils/krusader: update to 2.8.1

[Robert Bagdan <kikadf.01%gmail.com@localhost>]

Hi,
I've updated krusader to 2.8.1 in pkgsrc-wip, it builds and works fine
for me. pkglint reports it looks fine.
Any suggestions for the package? Is it ready to commit to pkgsrc?

Thanks,
kikadf