Improve sftp_rename().
Improve sftp_rename().


git-svn-id: b1dee0d48e635e16c3b356ce77271b225d4db9f7@611 7dcaeef0-15fb-0310-b436-a5af3365683c

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