vim: clean up skipwhite usage
vim: clean up skipwhite usage

The skipwhite option is only relevant when there is a nextgroup directive as
well.  Normalise the usage across the file and remove the extraneous skipwhite
directives.  NFC.

OscarSwanros/swift,tinysun212/swift-windows,modocache/swift,milseman/swift,gmilos/swift,shajrawi/swift,sschiau/swift,xwu/swift,practicalswift/swift,karwa/swift,jckarter/swift,jopamer/swift,roambotics/swift,tjw/swift,JGiola/swift,shahmishal/swift,apple/swift,kstaring/swift,brentdax/swift,return/swift,tinysun212/swift-windows,Jnosh/swift,IngmarStein/swift,gribozavr/swift,stephentyrone/swift,tjw/swift,uasys/swift,return/swift,nathawes/swift,tjw/swift,rudkx/swift,sschiau/swift,CodaFi/swift,nathawes/swift,therealbnut/swift,kperryua/swift,xedin/swift,roambotics/swift,natecook1000/swift,gribozavr/swift,tardieu/swift,calebd/swift,tkremenek/swift,JaSpa/swift,sschiau/swift,milseman/swift,sschiau/swift,roambotics/swift,nathawes/swift,arvedviehweger/swift,ahoppen/swift,practicalswift/swift,hughbe/swift,jmgc/swift,jmgc/swift,harlanhaskins/swift,tardieu/swift,practicalswift/swift,amraboelela/swift,kperryua/swift,practicalswift/swift,benlangmuir/swift,bitjammer/swift,danielmartin/swift,swiftix/swift,swiftix/swift,codestergit/swift,jopamer/swift,gottesmm/swift,practicalswift/swift,huonw/swift,dreamsxin/swift,codestergit/swift,natecook1000/swift,devincoughlin/swift,therealbnut/swift,gribozavr/swift,danielmartin/swift,OscarSwanros/swift,CodaFi/swift,manavgabhawala/swift,russbishop/swift,rudkx/swift,CodaFi/swift,ahoppen/swift,shahmishal/swift,gmilos/swift,gribozavr/swift,shahmishal/swift,modocache/swift,austinzheng/swift,russbishop/swift,allevato/swift,calebd/swift,aschwaighofer/swift,aschwaighofer/swift,JaSpa/swift,deyton/swift,austinzheng/swift,atrick/swift,danielmartin/swift,bitjammer/swift,gottesmm/swift,aschwaighofer/swift,JGiola/swift,return/swift,arvedviehweger/swift,codestergit/swift,shahmishal/swift,tjw/swift,sschiau/swift,milseman/swift,hooman/swift,xwu/swift,xwu/swift,aschwaighofer/swift,jopamer/swift,natecook1000/swift,felix91gr/swift,allevato/swift,huonw/swift,parkera/swift,gottesmm/swift,kstaring/swift,arvedviehweger/swift,IngmarStein/swift,djwbrown/swift,frootloops/swift,modocache/swift,tardieu/swift,codestergit/swift,xedin/swift,stephentyrone/swift,karwa/swift,jopamer/swift,jckarter/swift,nathawes/swift,gottesmm/swift,lorentey/swift,brentdax/swift,jckarter/swift,manavgabhawala/swift,lorentey/swift,amraboelela/swift,zisko/swift,apple/swift,tinysun212/swift-windows,zisko/swift,dreamsxin/swift,zisko/swift,ben-ng/swift,amraboelela/swift,gribozavr/swift,ben-ng/swift,stephentyrone/swift,stephentyrone/swift,benlangmuir/swift,russbishop/swift,huonw/swift,gregomni/swift,lorentey/swift,gmilos/swift,sschiau/swift,allevato/swift,devincoughlin/swift,IngmarStein/swift,tkremenek/swift,devincoughlin/swift,arvedviehweger/swift,lorentey/swift,zisko/swift,swiftix/swift,alblue/swift,tjw/swift,shajrawi/swift,kperryua/swift,apple/swift,harlanhaskins/swift,karwa/swift,calebd/swift,benlangmuir/swift,harlanhaskins/swift,deyton/swift,xedin/swift,jckarter/swift,IngmarStein/swift,karwa/swift,brentdax/swift,frootloops/swift,gottesmm/swift,jtbandes/swift,parkera/swift,alblue/swift,stephentyrone/swift,airspeedswift/swift,djwbrown/swift,therealbnut/swift,stephentyrone/swift,swiftix/swift,harlanhaskins/swift,ahoppen/swift,ben-ng/swift,huonw/swift,hooman/swift,amraboelela/swift,arvedviehweger/swift,JaSpa/swift,parkera/swift,bitjammer/swift,modocache/swift,tardieu/swift,zisko/swift,practicalswift/swift,Jnosh/swift,brentdax/swift,return/swift,xedin/swift,uasys/swift,kstaring/swift,shahmishal/swift,modocache/swift,gregomni/swift,jmgc/swift,bitjammer/swift,OscarSwanros/swift,russbishop/swift,sschiau/swift,harlanhaskins/swift,bitjammer/swift,huonw/swift,codestergit/swift,CodaFi/swift,apple/swift,alblue/swift,tinysun212/swift-windows,roambotics/swift,deyton/swift,felix91gr/swift,hooman/swift,gottesmm/swift,milseman/swift,felix91gr/swift,natecook1000/swift,tinysun212/swift-windows,alblue/swift,gregomni/swift,CodaFi/swift,glessard/swift,ben-ng/swift,uasys/swift,lorentey/swift,gregomni/swift,atrick/swift,tkremenek/swift,jckarter/swift,tkremenek/swift,xwu/swift,rudkx/swift,Jnosh/swift,jtbandes/swift,rudkx/swift,manavgabhawala/swift,jmgc/swift,alblue/swift,airspeedswift/swift,natecook1000/swift,JaSpa/swift,danielmartin/swift,devincoughlin/swift,kperryua/swift,karwa/swift,JGiola/swift,zisko/swift,xwu/swift,felix91gr/swift,ahoppen/swift,jmgc/swift,gribozavr/swift,return/swift,lorentey/swift,JGiola/swift,alblue/swift,devincoughlin/swift,hooman/swift,codestergit/swift,glessard/swift,nathawes/swift,lorentey/swift,brentdax/swift,CodaFi/swift,modocache/swift,tinysun212/swift-windows,jtbandes/swift,JaSpa/swift,return/swift,jmgc/swift,JGiola/swift,kperryua/swift,huonw/swift,alblue/swift,codestergit/swift,return/swift,shajrawi/swift,therealbnut/swift,austinzheng/swift,apple/swift,tardieu/swift,uasys/swift,ben-ng/swift,xedin/swift,therealbnut/swift,deyton/swift,ahoppen/swift,calebd/swift,austinzheng/swift,glessard/swift,felix91gr/swift,JaSpa/swift,uasys/swift,parkera/swift,hughbe/swift,shajrawi/swift,aschwaighofer/swift,OscarSwanros/swift,parkera/swift,frootloops/swift,jopamer/swift,djwbrown/swift,xedin/swift,uasys/swift,manavgabhawala/swift,djwbrown/swift,danielmartin/swift,shahmishal/swift,roambotics/swift,hooman/swift,kstaring/swift,gmilos/swift,gregomni/swift,rudkx/swift,jmgc/swift,deyton/swift,tkremenek/swift,benlangmuir/swift,bitjammer/swift,hooman/swift,milseman/swift,OscarSwanros/swift,manavgabhawala/swift,glessard/swift,hughbe/swift,tardieu/swift,uasys/swift,sschiau/swift,hughbe/swift,modocache/swift,russbishop/swift,parkera/swift,harlanhaskins/swift,nathawes/swift,IngmarStein/swift,jtbandes/swift,swiftix/swift,calebd/swift,airspeedswift/swift,frootloops/swift,brentdax/swift,jopamer/swift,tinysun212/swift-windows,frootloops/swift,kperryua/swift,hughbe/swift,jckarter/swift,natecook1000/swift,brentdax/swift,karwa/swift,deyton/swift,jtbandes/swift,ahoppen/swift,gmilos/swift,amraboelela/swift,frootloops/swift,IngmarStein/swift,djwbrown/swift,xwu/swift,allevato/swift,milseman/swift,therealbnut/swift,jtbandes/swift,atrick/swift,devincoughlin/swift,gregomni/swift,jopamer/swift,felix91gr/swift,tkremenek/swift,airspeedswift/swift,amraboelela/swift,arvedviehweger/swift,shajrawi/swift,atrick/swift,djwbrown/swift,atrick/swift,glessard/swift,atrick/swift,roambotics/swift,karwa/swift,aschwaighofer/swift,stephentyrone/swift,kperryua/swift,kstaring/swift,jckarter/swift,Jnosh/swift,milseman/swift,hughbe/swift,kstaring/swift,allevato/swift,practicalswift/swift,tkremenek/swift,shajrawi/swift,ben-ng/swift,harlanhaskins/swift,airspeedswift/swift,swiftix/swift,parkera/swift,tardieu/swift,devincoughlin/swift,jtbandes/swift,felix91gr/swift,OscarSwanros/swift,arvedviehweger/swift,gribozavr/swift,xwu/swift,shajrawi/swift,danielmartin/swift,manavgabhawala/swift,austinzheng/swift,hughbe/swift,bitjammer/swift,russbishop/swift,calebd/swift,calebd/swift,shahmishal/swift,airspeedswift/swift,Jnosh/swift,swiftix/swift,zisko/swift,therealbnut/swift,benlangmuir/swift,deyton/swift,OscarSwanros/swift,nathawes/swift,JGiola/swift,djwbrown/swift,russbishop/swift,practicalswift/swift,amraboelela/swift,shajrawi/swift,benlangmuir/swift,ben-ng/swift,hooman/swift,aschwaighofer/swift,gmilos/swift,natecook1000/swift,danielmartin/swift,CodaFi/swift,manavgabhawala/swift,tjw/swift,rudkx/swift,IngmarStein/swift,Jnosh/swift,Jnosh/swift,JaSpa/swift,shahmishal/swift,apple/swift,xedin/swift,frootloops/swift,gmilos/swift,gribozavr/swift,parkera/swift,lorentey/swift,devincoughlin/swift,allevato/swift,tjw/swift,kstaring/swift,airspeedswift/swift,austinzheng/swift,xedin/swift,gottesmm/swift,huonw/swift,austinzheng/swift,glessard/swift,allevato/swift,karwa/swift