vendoring and caldav

vendor/github.com/laurent22/ical-go/ical/lib.go

@@ -0,0 +1,18 @@
+package ical
+
+import (
+  "fmt"
+  "bytes"
+)
+
+type strBuffer struct {
+  buffer bytes.Buffer
+}
+
+func (b *strBuffer) Write(format string, elem ...interface{}) {
+  b.buffer.WriteString(fmt.Sprintf(format, elem...))
+}
+
+func (b *strBuffer) String() string {
+  return b.buffer.String()
+}