Fix a missing cast.
Fix a missing cast.

GaloisInc/smaccmpilot-SiK,geeksville/SiK,joeman155/SiK,phelpsw/SiK,tridge/SiK,weera00/SiK,RFDesign/SiK,geeksville/SiK,Serveurperso/SiK,joeman155/SiK,tomszilagyi/SiK,tridge/SiK,mikeclement/SiK,davidbuzz/SiK,weera00/SiK,geeksville/SiK,geeksville/SiK,davidbuzz/SiK,jschall/SiK,Serveurperso/SiK,chrissnell/DavisSi1000,GaloisInc/smaccmpilot-SiK,Serveurperso/SiK,jschall/SiK,chrissnell/DavisSi1000,joeman155/SiK,gardners/SiK,gardners/SiK,phelpsw/SiK,mikeclement/SiK,Dronecode/SiK,tomszilagyi/SiK,GaloisInc/smaccmpilot-SiK,Dronecode/SiK,chrissnell/DavisSi1000,tridge/SiK,LorenzMeier/SiK,chrissnell/DavisSi1000,davidbuzz/SiK,tridge/DavisSi1000,phelpsw/SiK,RFDesign/SiK,davidbuzz/SiK,davidbuzz/SiK,joeman155/SiK,tridge/DavisSi1000,jschall/SiK,RFDesign/SiK,mikeclement/SiK,tomszilagyi/SiK,tomszilagyi/SiK,LorenzMeier/SiK,LorenzMeier/SiK,mikeclement/SiK,chrissnell/DavisSi1000,gardners/SiK,tridge/DavisSi1000,Dronecode/SiK,nusepo/SiK,Dronecode/SiK,tomszilagyi/SiK,nusepo/SiK,jschall/SiK,RFDesign/SiK,weera00/SiK,nusepo/SiK,gardners/SiK,weera00/SiK,joeman155/SiK,tridge/SiK,phelpsw/SiK,tridge/SiK,weera00/SiK,GaloisInc/smaccmpilot-SiK,nusepo/SiK,nusepo/SiK,mikeclement/SiK,tridge/DavisSi1000,phelpsw/SiK,LorenzMeier/SiK,RFDesign/SiK,Serveurperso/SiK,geeksville/SiK