Fix install test
Fix install test

Summary:
list.sort() is done in place and returns None.  Therefore, the string
comparison was just comparing the two none objects instead of the actual
and expected output.

Task: SWARM-366

Test Plan: ran the test

Reviewers: anu, cwallin

Reviewed By: cwallin

Differential Revision: https://phabricator.td.teradata.com/D474

prestodb/presto-admin,Svjard/presto-admin,Svjard/presto-admin,prestodb/presto-admin