sftp: Don't leak owner and group in sftp_parse_attr_4.
sftp: Don't leak owner and group in sftp_parse_attr_4.

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