Set EDITOR, BROWSER and ETCDCTL_API environment variables

bash/environment

@@ -14,8 +14,11 @@ if [[ -x $(which setxkbmap) ]]; then
     fi
 fi
 
+export EDITOR=vim
+export BROWSER=firefox
+export ETCDCTL_API=3
+
 export PROMPT_COMMAND="history -a; history -c; history -r; $PROMPT_COMMAND"
-export EDITOR='vim'
 
 # don't put duplicate lines in the history. See bash(1) for more options
 # ... or force ignoredups and ignorespace