auth: Fix ssh_userauth_kbdint*() documentation.
auth: Fix ssh_userauth_kbdint*() documentation.

Thanks to Arto Karppinen.

jt1/honeypot-libssh,jt1/honeypot-libssh,pouete/libssh,Distrotech/libssh,wangshawn/libssh,taikoo/libssh,kedazo/libssh,mwgoldsmith/libssh,robxu9/libssh,taikoo/libssh,nviennot/libssh,pouete/libssh,robxu9/libssh,mwgoldsmith/libssh,Distrotech/libssh,elastichosts/libssh,pouete/libssh,mwgoldsmith/libssh,sebadoom/libssh,sebadoom/libssh,bigcat26/libssh-mod,robxu9/libssh,DouglasHeriot/libssh,taikoo/libssh,mwgoldsmith/ssh,robxu9/libssh,kedazo/libssh,nviennot/libssh,pouete/libssh,nviennot/libssh,Distrotech/libssh,wangshawn/libssh,Distrotech/libssh,jt1/honeypot-libssh,elastichosts/libssh,jt1/honeypot-libssh,DouglasHeriot/libssh,bigcat26/libssh-mod,DouglasHeriot/libssh,bigcat26/libssh-mod,mwgoldsmith/libssh,sebadoom/libssh,mwgoldsmith/ssh,nviennot/libssh,mwgoldsmith/ssh,wangshawn/libssh,DouglasHeriot/libssh,wangshawn/libssh,mwgoldsmith/ssh,kedazo/libssh,elastichosts/libssh,kedazo/libssh,bigcat26/libssh-mod,taikoo/libssh,sebadoom/libssh