Handle invalid options better.
Handle invalid options better.

w4ngyi/flocker,wallnerryan/flocker-profiles,lukemarsden/flocker,runcom/flocker,AndyHuu/flocker,Azulinho/flocker,jml/flocker,hackday-profilers/flocker,adamtheturtle/flocker,AndyHuu/flocker,1d4Nf6/flocker,jml/flocker,LaynePeng/flocker,LaynePeng/flocker,achanda/flocker,moypray/flocker,1d4Nf6/flocker,runcom/flocker,mbrukman/flocker,achanda/flocker,agonzalezro/flocker,achanda/flocker,wallnerryan/flocker-profiles,1d4Nf6/flocker,w4ngyi/flocker,wallnerryan/flocker-profiles,w4ngyi/flocker,AndyHuu/flocker,mbrukman/flocker,adamtheturtle/flocker,moypray/flocker,lukemarsden/flocker,Azulinho/flocker,mbrukman/flocker,hackday-profilers/flocker,agonzalezro/flocker,jml/flocker,lukemarsden/flocker,LaynePeng/flocker,agonzalezro/flocker,Azulinho/flocker,moypray/flocker,hackday-profilers/flocker,adamtheturtle/flocker,runcom/flocker