xib-bot: Update ebuild to git-2 and python-single-r1 eclass (Portage version: 2.2.7/hg/Linux x86_64, unsigned Manifest commit)

app-editors/vim
app-misc/tmux
app-shells/zsh
net-ftp/lftp
sys-apps/less
sys-process/htop
sys-process/lsof