meme*: add non_commercial_use to command

[bernt-matthias]

I guess the validator should be sufficient, but maybe having this
additional if block can't hurt

will make the linter happy for galaxyproject/galaxy#12724
alternatively we could extend the linter such that
parameters that do not appear on the command line
bu have a (expression) validator? are OK??

FOR CONTRIBUTOR:

• - I have read the CONTRIBUTING.md document and this tool is appropriate for the tools-iuc repo.
• - License permits unrestricted use (educational + commercial)
• - This PR adds a new tool or tool collection
• - This PR updates an existing tool or tool collection
• - This PR does something else (explain below)

[bgruening]

I think this is ok. Its crucial for commercial partners that this is on place.

[nsoranzo]

Should there be a ; at the end of the line here and below?