[test] Print "Available features" list in ASCIIbetical order.
[test] Print "Available features" list in ASCIIbetical order.

I mostly got fed up with the related features like CODEGENERATOR=X
being scattered throughout the other unrelated-and-mostly-lowercase
features.

huonw/swift,danielmartin/swift,xwu/swift,amraboelela/swift,gregomni/swift,jmgc/swift,hooman/swift,gregomni/swift,felix91gr/swift,huonw/swift,devincoughlin/swift,felix91gr/swift,xedin/swift,allevato/swift,zisko/swift,karwa/swift,djwbrown/swift,zisko/swift,benlangmuir/swift,shahmishal/swift,tkremenek/swift,danielmartin/swift,austinzheng/swift,sschiau/swift,jckarter/swift,uasys/swift,rudkx/swift,xedin/swift,djwbrown/swift,alblue/swift,nathawes/swift,xedin/swift,ahoppen/swift,milseman/swift,swiftix/swift,parkera/swift,calebd/swift,shajrawi/swift,karwa/swift,zisko/swift,atrick/swift,allevato/swift,jmgc/swift,milseman/swift,tjw/swift,karwa/swift,danielmartin/swift,apple/swift,alblue/swift,glessard/swift,roambotics/swift,jopamer/swift,return/swift,parkera/swift,parkera/swift,hooman/swift,aschwaighofer/swift,CodaFi/swift,karwa/swift,glessard/swift,uasys/swift,deyton/swift,aschwaighofer/swift,CodaFi/swift,lorentey/swift,deyton/swift,deyton/swift,harlanhaskins/swift,roambotics/swift,jopamer/swift,natecook1000/swift,jmgc/swift,ahoppen/swift,CodaFi/swift,return/swift,OscarSwanros/swift,harlanhaskins/swift,rudkx/swift,sschiau/swift,shajrawi/swift,lorentey/swift,deyton/swift,djwbrown/swift,swiftix/swift,alblue/swift,aschwaighofer/swift,tjw/swift,djwbrown/swift,practicalswift/swift,deyton/swift,tjw/swift,jckarter/swift,milseman/swift,zisko/swift,JGiola/swift,brentdax/swift,practicalswift/swift,calebd/swift,atrick/swift,tkremenek/swift,xedin/swift,milseman/swift,harlanhaskins/swift,parkera/swift,parkera/swift,brentdax/swift,ahoppen/swift,alblue/swift,glessard/swift,amraboelela/swift,gribozavr/swift,gribozavr/swift,return/swift,benlangmuir/swift,tkremenek/swift,zisko/swift,glessard/swift,jopamer/swift,jopamer/swift,shajrawi/swift,gribozavr/swift,xwu/swift,lorentey/swift,harlanhaskins/swift,sschiau/swift,sschiau/swift,amraboelela/swift,ahoppen/swift,jckarter/swift,stephentyrone/swift,danielmartin/swift,frootloops/swift,JGiola/swift,djwbrown/swift,djwbrown/swift,felix91gr/swift,jmgc/swift,shahmishal/swift,austinzheng/swift,harlanhaskins/swift,devincoughlin/swift,apple/swift,natecook1000/swift,allevato/swift,xedin/swift,benlangmuir/swift,gregomni/swift,frootloops/swift,OscarSwanros/swift,amraboelela/swift,jckarter/swift,atrick/swift,rudkx/swift,karwa/swift,nathawes/swift,alblue/swift,jmgc/swift,OscarSwanros/swift,devincoughlin/swift,danielmartin/swift,frootloops/swift,gregomni/swift,hooman/swift,roambotics/swift,hughbe/swift,rudkx/swift,hooman/swift,airspeedswift/swift,swiftix/swift,allevato/swift,tkremenek/swift,lorentey/swift,nathawes/swift,sschiau/swift,alblue/swift,hughbe/swift,OscarSwanros/swift,xwu/swift,JGiola/swift,airspeedswift/swift,brentdax/swift,jopamer/swift,rudkx/swift,allevato/swift,tkremenek/swift,felix91gr/swift,hughbe/swift,swiftix/swift,uasys/swift,nathawes/swift,felix91gr/swift,practicalswift/swift,shajrawi/swift,jckarter/swift,brentdax/swift,frootloops/swift,stephentyrone/swift,hooman/swift,practicalswift/swift,austinzheng/swift,shahmishal/swift,calebd/swift,lorentey/swift,milseman/swift,JGiola/swift,austinzheng/swift,roambotics/swift,shahmishal/swift,huonw/swift,practicalswift/swift,rudkx/swift,CodaFi/swift,felix91gr/swift,swiftix/swift,devincoughlin/swift,karwa/swift,calebd/swift,gribozavr/swift,danielmartin/swift,swiftix/swift,huonw/swift,return/swift,austinzheng/swift,harlanhaskins/swift,return/swift,benlangmuir/swift,brentdax/swift,harlanhaskins/swift,parkera/swift,xwu/swift,practicalswift/swift,shajrawi/swift,huonw/swift,stephentyrone/swift,hughbe/swift,gregomni/swift,stephentyrone/swift,aschwaighofer/swift,brentdax/swift,hughbe/swift,aschwaighofer/swift,swiftix/swift,amraboelela/swift,alblue/swift,nathawes/swift,apple/swift,brentdax/swift,shahmishal/swift,milseman/swift,tkremenek/swift,CodaFi/swift,tjw/swift,uasys/swift,karwa/swift,stephentyrone/swift,sschiau/swift,airspeedswift/swift,djwbrown/swift,return/swift,xwu/swift,calebd/swift,benlangmuir/swift,gribozavr/swift,natecook1000/swift,gregomni/swift,frootloops/swift,gribozavr/swift,practicalswift/swift,glessard/swift,devincoughlin/swift,natecook1000/swift,jopamer/swift,roambotics/swift,jopamer/swift,JGiola/swift,allevato/swift,lorentey/swift,devincoughlin/swift,deyton/swift,allevato/swift,parkera/swift,atrick/swift,atrick/swift,OscarSwanros/swift,gribozavr/swift,karwa/swift,devincoughlin/swift,jmgc/swift,glessard/swift,airspeedswift/swift,hooman/swift,nathawes/swift,tjw/swift,shahmishal/swift,shahmishal/swift,ahoppen/swift,calebd/swift,devincoughlin/swift,amraboelela/swift,CodaFi/swift,sschiau/swift,zisko/swift,hooman/swift,tjw/swift,OscarSwanros/swift,tjw/swift,OscarSwanros/swift,aschwaighofer/swift,frootloops/swift,atrick/swift,xwu/swift,xedin/swift,return/swift,tkremenek/swift,sschiau/swift,frootloops/swift,apple/swift,nathawes/swift,hughbe/swift,benlangmuir/swift,shahmishal/swift,xedin/swift,airspeedswift/swift,huonw/swift,natecook1000/swift,uasys/swift,felix91gr/swift,austinzheng/swift,xedin/swift,natecook1000/swift,shajrawi/swift,uasys/swift,gribozavr/swift,lorentey/swift,zisko/swift,amraboelela/swift,stephentyrone/swift,lorentey/swift,apple/swift,calebd/swift,xwu/swift,shajrawi/swift,jmgc/swift,danielmartin/swift,parkera/swift,ahoppen/swift,huonw/swift,practicalswift/swift,jckarter/swift,aschwaighofer/swift,airspeedswift/swift,apple/swift,hughbe/swift,airspeedswift/swift,natecook1000/swift,uasys/swift,roambotics/swift,shajrawi/swift,deyton/swift,milseman/swift,jckarter/swift,JGiola/swift,CodaFi/swift,stephentyrone/swift,austinzheng/swift