expose the time object to allow custom formatting

ref - http://bugs.activestate.com/show_bug.cgi?id=96009

tail.go

@@ -12,7 +12,7 @@ import (
 
 type Line struct {
 	Text     string
-	UnixTime int64
+	Time     time.Time
 }
 
 type Config struct {
@@ -150,7 +150,7 @@ func (tail *Tail) tailFileSync() {
 
 		if err == nil {
 			if line != nil {
-				now := getCurrentTime()
+				now := time.Now()
 				if tail.MaxLineSize > 0 && len(line) > tail.MaxLineSize {
 					for _, line := range partitionString(string(line), tail.MaxLineSize) {
 						tail.Lines <- &Line{line, now}
@@ -213,11 +213,6 @@ func (tail *Tail) tailFileSync() {
 	}
 }
 
-// getCurrentTime returns the current time as UNIX timestamp
-func getCurrentTime() int64 {
-	return time.Now().UTC().Unix()
-}
-
 // partitionString partitions the string into chunks of given size,
 // with the last chunk of variable size.
 func partitionString(s string, chunkSize int) []string {