Change new comparisons against String.Empty to use IsNullOrWhiteSpace
Change new comparisons against String.Empty to use IsNullOrWhiteSpace

Since I've changed this code anyway, updating it to use this method
covers a little more than just comparing against String.Empty.

isaacabraham/Paket,mrinaldi/Paket,thinkbeforecoding/Paket,theimowski/Paket,colinbull/Paket,matthid/Paket,isaacabraham/Paket,cloudRoutine/Paket,Stift/Paket,antymon4o/Paket,Thorium/Paket,mrinaldi/Paket,NatElkins/Paket,NatElkins/Paket,jam40jeff/Paket,0x53A/Paket,vasily-kirichenko/Paket,snowcrazed/Paket,thinkbeforecoding/Paket,MorganPersson/Paket,robertpi/Paket,thinkbeforecoding/Paket,antymon4o/Paket,colinbull/Paket,inosik/Paket,NatElkins/Paket,Thorium/Paket,magicmonty/Paket,artur-s/Paket,Stift/Paket,MorganPersson/Paket,cloudRoutine/Paket,simonhdickson/Paket,baronfel/Paket,NatElkins/Paket,cloudRoutine/Paket,lexarchik/Paket,baronfel/Paket,lexarchik/Paket,cloudRoutine/Paket,vbfox/Paket,robertpi/Paket,vbfox/Paket,thinkbeforecoding/Paket,simonhdickson/Paket,magicmonty/Paket,lexarchik/Paket,lexarchik/Paket,snowcrazed/Paket,sergey-tihon/Paket,Stift/Paket,vbfox/Paket,vasily-kirichenko/Paket,MorganPersson/Paket,isaacabraham/Paket,MorganPersson/Paket,magicmonty/Paket,0x53A/Paket,robertpi/Paket,0x53A/Paket,magicmonty/Paket,artur-s/Paket,fsprojects/Paket,sergey-tihon/Paket,isaacabraham/Paket,robertpi/Paket,mrinaldi/Paket,Stift/Paket,0x53A/Paket,simonhdickson/Paket,jam40jeff/Paket,matthid/Paket,snowcrazed/Paket,mrinaldi/Paket,matthid/Paket,simonhdickson/Paket,matthid/Paket,snowcrazed/Paket,inosik/Paket,Thorium/Paket,Thorium/Paket,fsprojects/Paket,vbfox/Paket,theimowski/Paket