Fixing whitespace

Adding space between type and star

Author: emawby

iOS_SDK/OneSignalSDK/Source/OneSignalHelper.m

@@ -783,7 +783,7 @@ + (void)addNotificationRequest:(OSNotificationPayload*)payload
  Synchroneously downloads an attachment
  On success returns bundle resource name, otherwise returns nil
 */
-+ (NSString *)downloadMediaAndSaveInBundle:(NSString*)urlString {
++ (NSString *)downloadMediaAndSaveInBundle:(NSString *)urlString {
 
     let url = [NSURL URLWithString:urlString];