fast-logger: Breaking API change in minor version bump

[snoyberg]

3.0.3:

newFileLoggerSet :: BufSize -> FilePath -> IO LoggerSet

3.0.4

newFileLoggerSet :: BufSize -> Maybe Int -> FilePath -> IO LoggerSet

Discovered with a Stackage build, where downstream packages (tinylog and logging) were broken.

[kazu-yamamoto]

I categorized that System.Log.FastLogger.LoggerSet is a kind of internal modules. But if this is a real problem, I will recover the backward compatibility soon.

[snoyberg]

For now, I've opened up downstream issues:

• https://github.com/jwiegley/logging/issues/25
• https://gitlab.com/twittner/tinylog/-/issues/4

I've also blocked fast-logger-3.0.4 from Stackage until downstream packages resolve the issue. There's no immediate problem for Stackage, so it's your decision on whether to make a change for the downstream packages.

[kazu-yamamoto]

Fixed in v3.0.5. 3.0.4 is deprecated.

[snoyberg]

Awesome, thanks!