Add a version flag.
Add a version flag.

w4ngyi/pgcli,n-someya/pgcli,dbcli/vcli,bitmonk/pgcli,janusnic/pgcli,bitemyapp/pgcli,bitemyapp/pgcli,lk1ngaa7/pgcli,suzukaze/pgcli,MattOates/pgcli,j-bennet/pgcli,nosun/pgcli,dbcli/vcli,yx91490/pgcli,zhiyuanshi/pgcli,TamasNo1/pgcli,janusnic/pgcli,koljonen/pgcli,d33tah/pgcli,thedrow/pgcli,yx91490/pgcli,n-someya/pgcli,koljonen/pgcli,joewalnes/pgcli,joewalnes/pgcli,zhiyuanshi/pgcli,johshoff/pgcli,dbcli/pgcli,nosun/pgcli,d33tah/pgcli,darikg/pgcli,darikg/pgcli,thedrow/pgcli,TamasNo1/pgcli,bitmonk/pgcli,johshoff/pgcli,MattOates/pgcli,j-bennet/pgcli,dbcli/pgcli,w4ngyi/pgcli,suzukaze/pgcli,lk1ngaa7/pgcli