[test] build failure due to non-constant format string in fmt.Errorf

Author: mansikulkarni96

pkg/daemon/fake/winsvc.go

@@ -63,7 +63,7 @@ func (f *FakeService) Control(cmd svc.Cmd) (svc.Status, error) {
 		for _, serviceName := range existingServices {
 			service, present := f.serviceList.read(serviceName)
 			if !present {
-				return svc.Status{}, fmt.Errorf("unable to open service " + serviceName)
+				return svc.Status{}, fmt.Errorf("unable to open service %s", serviceName)
 			}
 			config, err := service.Config()
 			if err != nil {
@@ -77,8 +77,8 @@ func (f *FakeService) Control(cmd svc.Cmd) (svc.Status, error) {
 						return svc.Status{}, fmt.Errorf("error querying %s service status: %w", serviceName, err)
 					}
 					if status.State != svc.Stopped {
-						return svc.Status{}, fmt.Errorf("cannot stop service as other service " + serviceName +
-							" is dependent on it")
+						return svc.Status{}, fmt.Errorf("cannot stop service: %s, as other service is dependent on"+
+							"it", serviceName)
 					}
 				}
 			}

test/e2e/validation_test.go

@@ -465,7 +465,7 @@ func (tc *testContext) getWinServices(addr string) (map[string]winService, error
 	// Remove the header and trailing whitespace from the command output
 	outSplit := strings.SplitAfterN(out, "\"Name\",\"State\",\"Description\"\r\n", 2)
 	if len(outSplit) != 2 {
-		return nil, fmt.Errorf("unexpected command output: " + out)
+		return nil, fmt.Errorf("unexpected command output: %s", out)
 	}
 	trimmedList := strings.TrimSpace(outSplit[1])
 
@@ -476,7 +476,7 @@ func (tc *testContext) getWinServices(addr string) (map[string]winService, error
 		// Split into 3 substrings, Name, State, Description. The description can contain a comma, so SplitN is required
 		fields := strings.SplitN(line, ",", 3)
 		if len(fields) != 3 {
-			return nil, fmt.Errorf("expected comma separated values, found: " + line)
+			return nil, fmt.Errorf("expected comma separated values, found: %s", line)
 		}
 		name := strings.Trim(fields[0], "\"")
 		state := strings.Trim(fields[1], "\"")