add a dryrun flag for depinst.py

Question 1

... because it would be useful.

Question 2

depinst can't do a dry run because if it doesn't install the dependencies, it can't scan them.

Answer · 2019-02-14T22:24:37.000Z

depinst can't do a dry run because if it doesn't install the dependencies, it can't scan them.

Question 3

Ok, that makes sense.

Answer · 2019-02-15T08:05:14.000Z

Ok, that makes sense.