VOL-2496 Add "event listen" command to voltctl

Change-Id: I8f1fb34b55f56c8125142ac289e2f19fc170d804
diff --git a/vendor/gopkg.in/jcmturner/rpc.v1/ndr/error.go b/vendor/gopkg.in/jcmturner/rpc.v1/ndr/error.go
new file mode 100644
index 0000000..9971194
--- /dev/null
+++ b/vendor/gopkg.in/jcmturner/rpc.v1/ndr/error.go
@@ -0,0 +1,18 @@
+package ndr
+
+import "fmt"
+
+// Malformed implements the error interface for malformed NDR encoding errors.
+type Malformed struct {
+	EText string
+}
+
+// Error implements the error interface on the Malformed struct.
+func (e Malformed) Error() string {
+	return fmt.Sprintf("malformed NDR stream: %s", e.EText)
+}
+
+// Errorf formats an error message into a malformed NDR error.
+func Errorf(format string, a ...interface{}) Malformed {
+	return Malformed{EText: fmt.Sprintf(format, a...)}
+}