message: Avoid showing Unsupported OS X notice twice when opening About window (mac),
diff: @@ -56,11 +56,6 @@ extern void *ctx;
  - (BOOL)updateCheckEnabled
  {
  - if (![[UnsupportedNotice sharedInstance] validateOSVersion])
  - {
  - return NO;
  - }
  -
  NSDictionary *infoDict = [[NSBundle mainBundle] infoDictionary];
  return [infoDict[@"KopsikCheckForUpdates"] boolValue];
  @@ -68,6 +63,10 @@ extern void *ctx;
  - (void)checkForUpdates
  {
  + if (![[UnsupportedNotice sharedInstance] validateOSVersion])
  + {
  + return;
  + }
  if (![self updateCheckEnabled])
  {
  return;
  