Improve ssh_userauth_agent_pubkey().
Improve ssh_userauth_agent_pubkey().


git-svn-id: b1dee0d48e635e16c3b356ce77271b225d4db9f7@668 7dcaeef0-15fb-0310-b436-a5af3365683c

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