Set private to true instead of false

Author: tanx

src/action/invoice.js

@@ -64,7 +64,7 @@ class InvoiceAction {
       const response = await this._grpc.sendCommand('addInvoice', {
         value: toSatoshis(invoice.amount, settings),
         memo: invoice.note,
-        private: false,
+        private: true,
       });
       invoice.encoded = response.payment_request;
       invoice.uri = `${PREFIX_URI}${invoice.encoded}`;

test/unit/action/invoice.spec.js

@@ -60,7 +60,7 @@ describe('Action Invoice Unit Tests', () => {
         .withArgs('addInvoice', {
           value: 1000,
           memo: 'foo',
-          private: false,
+          private: true,
         })
         .resolves({
           payment_request: 'some-request',