dbptk-report-... file should not be generated whenever dbptk-tool is invoked

[pandabear]

Description:

I tried using master-branch built dbptk.

Whenever dbptk-tool is invoked, dbptk-report... file gets generated regardless how it was being executed (either with or without module. I personally believe this is an unintended behaviour.

Steps required to reproduce the bug:

1. Execute java -jar dbptk-app-2.11.0-SNAPSHOT.jar validate -if my_valid.siard.
2. Notice how dbptk-report... text file gets generated that contains Conversion Report despite the invocation being validate.
3. Execute java -jar dbptk-app-2.11.0-SNAPSHOT.jar validate.
4. Notice how new dbptk-report... text file gets generated that contains Conversion Report despite the invocation being an invalid validate call.