make it one sentence

contrib/analyze-local-images/main.go

@@ -271,8 +271,7 @@ func AnalyzeLocalImage(imageName string, minSeverity types.Priority, endpoint, m
 	} else if !hasVisibleVulnerabilities {
 		fmt.Printf("%s No vulnerabilities matching the minimum severity level were detected in your image\n", color.YellowString("NOTE:"))
 	} else {
-                errorTotal := errors.New("total Errors: "+strconv.Itoa(len(vulnerabilities)))
-                return errorTotal
+		return fmt.Errorf("A total of %d vulnerabilities have been detected in your image", len(vulnerabilities))
         }
 
 	return nil