Description of problem:

Looks like there is no error checking for permission grant on resources.

Version-Release number of selected component (if applicable):
[root@preethi ~]# rpm -q pulp-rpm-server
pulp-rpm-server-2.0.6-0.2.beta.noarch
[root@preethi ~]# 


How reproducible:


Steps to Reproduce:
[root@preethi ~]# pulp-admin auth permission grant --login test -o CREATE --resource " "
Permissions [  : ['CREATE']] successfully granted to user [test]




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Actual results:
[root@preethi ~]# pulp-admin auth permission grant --login test -o CREATE --resource " "
Permissions [  : ['CREATE']] successfully granted to user [test]



Expected results:


Additional info: