fix typo

Author: raju-opti

lib/event_processor/default_dispatcher.browser.spec.ts

@@ -26,7 +26,7 @@ describe('eventDispatcher', () => {
     expect(Object.is(eventDispatcher, MockDefaultEventDispatcher.mock.instances[0])).toBe(true);
   });
 
-  it('users a BrowserRequestHandler', () => {
+  it('uses a BrowserRequestHandler', () => {
     expect(Object.is(eventDispatcher, MockDefaultEventDispatcher.mock.instances[0])).toBe(true);
     expect(Object.is(MockDefaultEventDispatcher.mock.calls[0][0], MockBrowserRequestHandler.mock.instances[0])).toBe(true);
   });

lib/event_processor/default_dispatcher.node.spec.ts

@@ -27,7 +27,7 @@ describe('eventDispatcher', () => {
     expect(Object.is(eventDispatcher, MockDefaultEventDispatcher.mock.instances[0])).toBe(true);
   });
 
-  it('users a NodeRequestHandler', () => {
+  it('uses a NodeRequestHandler', () => {
     expect(Object.is(eventDispatcher, MockDefaultEventDispatcher.mock.instances[0])).toBe(true);
     expect(Object.is(MockDefaultEventDispatcher.mock.calls[0][0], MockNodeRequestHandler.mock.instances[0])).toBe(true);
   });