Simple logging in swift

log.swift

func log<T>(message: T, fileName: String = __FILE__, lineNumber: Int = __LINE__, args: CVarArgType...) {
    let date = NSDate()
    let processInfo = NSProcessInfo()
    let appName = processInfo.processName
    let combined = String(format: String(stringInterpolationSegment: message), arguments: args)
    
    println("\(date) \(appName) [\(fileName.lastPathComponent):\(lineNumber)] \(combined)")
}