Add missing argument checks for options.
Add missing argument checks for options.


git-svn-id: b1dee0d48e635e16c3b356ce77271b225d4db9f7@350 7dcaeef0-15fb-0310-b436-a5af3365683c

sebadoom/libssh,pouete/libssh,nviennot/libssh,pouete/libssh,taikoo/libssh,DouglasHeriot/libssh,substack/libssh,mwgoldsmith/ssh,DouglasHeriot/libssh,taikoo/libssh,jahrome/libssh,jahrome/libssh,rofl0r/libssh,bigcat26/libssh-mod,Distrotech/libssh,jt1/honeypot-libssh,robxu9/libssh,rofl0r/libssh,taikoo/libssh,wangshawn/libssh,mwgoldsmith/libssh,nviennot/libssh,taikoo/libssh,wangshawn/libssh,DouglasHeriot/libssh,rofl0r/libssh,rofl0r/libssh,mwgoldsmith/libssh,robxu9/libssh,kedazo/libssh,miloj/libssh-v0.5,nviennot/libssh,DouglasHeriot/libssh,sebadoom/libssh,miloj/libssh-v0.5,jt1/honeypot-libssh,robxu9/libssh,kedazo/libssh,nviennot/libssh,miloj/libssh-v0.5,elastichosts/libssh,mwgoldsmith/ssh,pouete/libssh,sebadoom/libssh,substack/libssh,mwgoldsmith/ssh,mwgoldsmith/ssh,mwgoldsmith/libssh,Distrotech/libssh,mwgoldsmith/libssh,elastichosts/libssh,elastichosts/libssh,kedazo/libssh,Distrotech/libssh,substack/libssh,jahrome/libssh,sebadoom/libssh,wangshawn/libssh,jt1/honeypot-libssh,jahrome/libssh,kedazo/libssh,robxu9/libssh,bigcat26/libssh-mod,substack/libssh,wangshawn/libssh,pouete/libssh,Distrotech/libssh,bigcat26/libssh-mod,jt1/honeypot-libssh,bigcat26/libssh-mod,miloj/libssh-v0.5