another test case

__tests__/setup-go.test.ts

@@ -409,6 +409,16 @@ describe('setup-go', () => {
     expect(annotation.message).toBe('undefined: fmt.Printl');
   });
 
+  it('only matches leading dots on unix path', async () => {
+    let line = 'x./assert.go:5:2: missing return at end of function';
+    let annotation = testMatch(line);
+    expect(annotation).toBeDefined();
+    expect(annotation.line).toBe(5);
+    expect(annotation.column).toBe(2);
+    expect(annotation.file).toBe('./assert.go');
+    expect(annotation.message).toBe('missing return at end of function');
+  });
+
   // 1.13.1 => 1.13.1
   // 1.13 => 1.13.0
   // 1.10beta1 => 1.10.0-beta1, 1.10rc1 => 1.10.0-rc1