[cmds] fix a glitch when adding a comment on a small screen
[cmds] fix a glitch when adding a comment on a small screen

sureshsundriyal/lnav,sureshsundriyal/lnav,tstack/lnav,sureshsundriyal/lnav,tstack/lnav,tstack/lnav,sureshsundriyal/lnav,tstack/lnav