Log message:
sysutils: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes

Log message:
sysutils: Remove SHA1 hashes for distfiles

Log message:
yank: needs xsel, depend on it

Bump PKGREVISION.

Log message:
Add sysutils/yank.

The yank(1) utility reads input from stdin and display a selection interface
that allows a field to be selected and copied to the clipboard. Fields are
either recognized by a regular expression using the -g option or by splitting
the input on a delimiter sequence using the -d option.

Using the arrow keys will move the selected field. The interface supports
several Emacs and Vi like key bindings, consult the man page for further
reference. Pressing the return key will invoke the yank command and write
the selected field to its stdin. The yank command defaults to xsel(1) but
could be anything that accepts input on stdin. When invoking yank, everything
supplied after the -- option will be used as the yank command.