fixed dependencies

vendor/github.com/lestrrat-go/strftime/extension.go

@@ -0,0 +1,67 @@
+package strftime
+
+import (
+	"strconv"
+	"time"
+)
+
+// NOTE: declare private variable and iniitalize once in init(),
+// and leave the Milliseconds() function as returning static content.
+// This way, `go doc -all` does not show the contents of the
+// milliseconds function
+var milliseconds Appender
+var microseconds Appender
+var unixseconds Appender
+
+func init() {
+	milliseconds = AppendFunc(func(b []byte, t time.Time) []byte {
+		millisecond := int(t.Nanosecond()) / int(time.Millisecond)
+		if millisecond < 100 {
+			b = append(b, '0')
+		}
+		if millisecond < 10 {
+			b = append(b, '0')
+		}
+		return append(b, strconv.Itoa(millisecond)...)
+	})
+	microseconds = AppendFunc(func(b []byte, t time.Time) []byte {
+		microsecond := int(t.Nanosecond()) / int(time.Microsecond)
+		if microsecond < 100000 {
+			b = append(b, '0')
+		}
+		if microsecond < 10000 {
+			b = append(b, '0')
+		}
+		if microsecond < 1000 {
+			b = append(b, '0')
+		}
+		if microsecond < 100 {
+			b = append(b, '0')
+		}
+		if microsecond < 10 {
+			b = append(b, '0')
+		}
+		return append(b, strconv.Itoa(microsecond)...)
+	})
+	unixseconds = AppendFunc(func(b []byte, t time.Time) []byte {
+		return append(b, strconv.FormatInt(t.Unix(), 10)...)
+	})
+}
+
+// Milliseconds returns the Appender suitable for creating a zero-padded,
+// 3-digit millisecond textual representation.
+func Milliseconds() Appender {
+	return milliseconds
+}
+
+// Microsecond returns the Appender suitable for creating a zero-padded,
+// 6-digit microsecond textual representation.
+func Microseconds() Appender {
+	return microseconds
+}
+
+// UnixSeconds returns the Appender suitable for creating
+// unix timestamp textual representation.
+func UnixSeconds() Appender {
+	return unixseconds
+}