ops: true 411 kelvin compat

We're going to want to pull in the new /lib/strandio, which we need to
be able to build. The signature for %keen changed, so the old
/lib/strandio no longer compiles.

If we had a custom version of /lib/strandio that excluded the +keen
arms, we could be 412-411 cross-compatible...

desk/sys.kelvin

@@ -1 +1 @@
-[%zuse 412]
+[%zuse 411]