Allow to retrieve a token

Summary: This is a follow-up for 0a197039c4b0.

Test Plan:
Ref T1433

salt equatower saltutil.sync_modules && salt equatower zr.get_token 126

Reviewers: dereckson

Reviewed By: dereckson

Maniphest Tasks: T1433

Differential Revision: https://devcentral.nasqueron.org/D1763