Add return command to exit script prematurely

[rvansa]

When there are multiple conditions where the script should not continue the indent is increased by 2 (4 characters) with each condition. A return command that stops current script execution would be handy.

[johnaohara]

What would be the difference between a return command and the abort command?

[rvansa]

abort completely terminates qDup run, return would just stop the current script (e.g. you found that the directory exists and you don't have to do anything with it).