style fix for error checking (#1170)

+additional linting

utils/utils.go

@@ -161,8 +161,7 @@ func GetCacheDurationSecondsForPath(filePath string) int {
 }
 
 func IsValidUrl(urlToTest string) bool {
-	_, err := url.ParseRequestURI(urlToTest)
-	if err != nil {
+	if _, err := url.ParseRequestURI(urlToTest); err != nil {
 		return false
 	}
 
@@ -236,4 +235,4 @@ func CleanupDirectory(path string) {
 	if err := os.MkdirAll(path, 0777); err != nil {
 		log.Fatalln("Unable to create directory. Please check the ownership and permissions", err)
 	}
-}
+}