Improve and document ssh_set_error().
Improve and document ssh_set_error().


git-svn-id: b1dee0d48e635e16c3b356ce77271b225d4db9f7@719 7dcaeef0-15fb-0310-b436-a5af3365683c

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