Gps time fix

Does that mean it's not worth fixing? If it's sprinkled everywhere you might consider doing one large indentation normalization commit (replace tabs with spaces is pretty easy to do globally).

Not trying to be too nitpicky, but it seems important since inconsistent indentation makes code review harder, and that's how bugs like [Apple's SSL/TLS bug](https://www.imperialviolet.org/2014/02/22/applebug.html) slip through.