log/syslog: flakey TestConcurrentReconnect test

[mikioh]

What steps will reproduce the problem?
1. go test -v -run=TestConcurrentReconnect -cpu=2,2,2,2
2.
3.

What is the expected output? What do you see instead?
PASS: TestConcurrentReconnect-2 (0.07 seconds)

Please use labels and text to provide additional information.
http://build.golang.org/log/d8b466031c5eabeaf15e7d63dca7554c99504920
http://build.golang.org/log/016f140e757cfe8cf2516d74cb898351fec8df24
http://build.golang.org/log/abd6c0a78f68780e03f55c656bd291aa22891661

[mikioh]

Comment 1:

Looks like srvWG.Wait of TestConcurrentReconnect waits forever, sigh, too much
complicated test. The infinite loop might be closed by reading/writing unix-domain
sockets (and thier watermarks) and server/client liveliness checking sync.WaitGroups.

[ysmolski]

This seems to be working as intended for netbsd: https://build.golang.org/

Feel free to reopen if I am not correct, @mikioh.

Also on my machine (macos):

..src/log/syslog (master $%=) % go test -v -run=TestConcurrentReconnect -cpu=2,2,2,2
=== RUN   TestConcurrentReconnect
--- PASS: TestConcurrentReconnect (0.01s)
=== RUN   TestConcurrentReconnect
--- PASS: TestConcurrentReconnect (0.00s)
=== RUN   TestConcurrentReconnect
--- PASS: TestConcurrentReconnect (0.00s)
=== RUN   TestConcurrentReconnect
--- PASS: TestConcurrentReconnect (0.00s)
PASS
ok  	log/syslog	0.025s

EDIT: link above.