channel: Use MIN macro in channel_write_common().
channel: Use MIN macro in channel_write_common().

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