Some fixed warnings are not actual problems. I just want output
golangci-run to be smaller. Otherwise it is problematic to see
actual problems found by linters due to amount of noise.
testutils, ctl/maddyctl: Remove quite a lot of unused entities.
msgpipeline: Fix typo in log message.
msgpipeline: Add missing 'case 0' for 'reject' directive parsing
msgpipeline: Preallocate slice in parseChecksGroup
Check errors in some places in tests.
smtp_upstream: Move DATA command use into Commit
target/queue: Avoid copying sync.Mutex
Not a problem since it is not used after copying, but I just want
govet to shut up.
New name more precisely describes what it is doing now. It was initally
meant to be more generic and usable for other purposes, but I don't
think we will need that flexibility.
Due to .gitignore, target/queue directory got ignored and was not
commited.
This commit makes problematic ignore filter more strict and adds
accidentally removed directory.
