message: Make `:ex` an alias for `:e[dit]` and `:exi[t]` an alias for `:x[it]`
diff: @@ -214,9 +214,9 @@ export const builtinExCommands: ReadonlyArray<[[string, string], ArgParser | und
  [['endw', 'hile'], undefined],
  [['ene', 'w'], FileCommand.argParsers.enew],
  [['ev', 'al'], undefined],
  - [['ex', ''], undefined],
  + [['ex', ''], FileCommand.argParsers.edit],
  [['exe', 'cute'], undefined],
  - [['exi', 't'], undefined],
  + [['exi', 't'], WriteQuitCommand.argParser],
  [['exu', 'sage'], undefined],
  [['f', 'ile'], FileInfoCommand.argParser],
  [['files', ''], undefined],
  