fix 'hang' issue with emacs tramp.

zshrc

@@ -25,6 +25,7 @@ bindkey -e
 export LESS="-X -R -F"
 alias http='python -m http.server'
 export PATH=$HOME/bin:/usr/local/bin:$PATH
+export PAGER=most
 alias t=todo.sh
 export EDITOR=mg
 
@@ -55,6 +56,7 @@ if ! zgen saved; then
 	zgen load Tarrasch/zsh-bd
 	zgen load Tarrasch/zsh-colors
 	zgen load supercrabtree/k
+	zgen load bobsoppe/zsh-ssh-agent
 	zgen save
 fi