Check null CultureInfo when shrinking. Mono sometimes returns a null parent culture
Check null CultureInfo when shrinking.
Mono sometimes returns a null parent culture

forki/FsCheck,fscheck/FsCheck,ErikSchierboom/FsCheck,ploeh/FsCheck,paulyoung/FsCheck,forki/FsCheck,fscheck/FsCheck,jhamm/FsCheck,fsharp/FsCheck,cloudRoutine/FsCheck,paulyoung/FsCheck,sideeffffect/FsCheck,cloudRoutine/FsCheck