* master:
  go/neo/neonet: errgroup -> xsync.WorkGroup

See go123@515a6d14

See go123@515a6d14

- without registering M to tracer it was failing as

  BenchmarkGetObjectNetPipe
      neo_test.go:491: main: expect: *neo.eventMStartReady:
          want: &{m true}
          have: &{ true}
          diff:  {
          - Where: "m",
          + Where: "",
            Ready: true,
           }

- Client is now required to be explicitly Run, but I forgot to update
  thi function in eae3b427.

* master:
  go/*: Adapt to xnet.Networker changes wrt Listen and cancellation
  go/internal/xtesting: DrvTestWatch: Verify that watching works with empty transactions
  go/zeo: tests: Terminate spawned processses with SIGTERM instead of SIGKILL
  go/zodb/zeo: Factor-out verifying empty database into xtesting.DrvTestEmptyDB
  go/neo/t: .nxdtest: nxdtest changes summaryf signature to include stderr

See

	go123@3354b401
and

	go123@b03d65ff

The wrapping logic in LinkListener goes away because Accept from xnet
now supports cancellation.

previously

- we were explicitly calling it on errors.Cause(err)
- and not in every place.

See

	go123@3354b401
and

	go123@b03d65ff

The wrapping logic in LinkListener and requireIdentifyHello goes away
because Accept from xnet now supports cancellation.

NEO/py no longer writes config.partition at all. This way sqlite backend
fails to open any database:

    xtesting.go:453: start neo/go /tmp/neo375346404/1: /tmp/neo375346404/1.sqlite: NEO/go POC: not ready to handle: sqlite:///tmp/neo375346404/1.sqlite: config: partitions: not found

- Move ca/cert/key out of query part into credentials part of URL
- As a consequence move cluster name out of credentials part into path part
- Allow both neo:// and neos:// schemes to be used.
  neo:// means alwasy without SSL and neos:// means always with SSL.
  Even if neos:// URL comes without credentials embedded into it - they
  can be obtained from elsewhere.

I need this change in wendelin.core 2 which needs to take a zurl and
compute a mountpoint patch that corresponds to it, so that multiple
several zopes that use the same NEO storage, could be associated with
the same single WCFS instance.