[Sparkle] SUGetCharType for double zeroes

[Dave Dribin]

Hello,

I've noticed that SUGetCharType() returns a string type for multiple  
zeroes, like "00".  The current code is:

int SUGetCharType(NSString *character)
{
     if ([character isEqualToString:@"."]) {
         return kPeriodType;
     } else if ([character isEqualToString:@"0"] || [character  
intValue] != 0) {
         return kNumberType;
     } else {
         return kStringType;
     }	
}


Can anyone think of a reason why not to use +[NSCharacterSet  
decimalDigitCharacterSet] to match kNumberType?  I'm changing my  
version numbers to not use multiple zeroes, but figured this may be a  
worthy patch to Sparkle to help someone else in the future.

Thanks,

-Dave