Improve channel_free().
Improve channel_free().


git-svn-id: b1dee0d48e635e16c3b356ce77271b225d4db9f7@388 7dcaeef0-15fb-0310-b436-a5af3365683c

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