Description of problem:
When trying to specify a valid component with the hammer admin logging command, none are accepted. 

[root@rhsm-qe-1 ~]# hammer admin logging -d -c rails
Error: Unknown component provided, use --list to find them

[root@rhsm-qe-1 ~]# hammer admin logging -d --components rails
Error: Unknown component provided, use --list to find them

Version-Release number of selected component (if applicable):
Satellite 6.2.1 Snap 1.2

How reproducible:
Always

Steps to Reproduce:
1. enable or disable debug logging, specifying at least one listed component.

Actual results:
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c postgresql
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c=rails
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c proxy
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c puppet
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c dhcp
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c named
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c tftp
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c qpidd
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c tomcat
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c pulp
Error: Unknown component provided, use --list to find them
[root@ibm-x3550m3-10 ~]# hammer admin logging -d -c virt-who
Error: Unknown component provided, use --list to find them

Expected results:
The command accepts all components listed with hammer admin logging -l

Additional info:
# hammer admin logging -l
-----------|-------------------------------------|-------------------------------------
COMPONENT  | AUTO-DETECTED BY EXISTENCE OF       | DESTINATIONS                        
-----------|-------------------------------------|-------------------------------------
postgresql | /var/lib/pgsql/data/postgresql.conf | syslog /var/lib/pgsql/data/pg_log/  
rails      | /etc/foreman/settings.yaml          | /var/log/foreman/production.log     
proxy      | /etc/foreman-proxy/settings.yml     | /var/log/foreman-proxy/proxy.log    
puppet     | /etc/puppet/puppet.conf             | /var/log/puppet/masterhttp.log      
dhcpd      | /etc/dhcp/dhcpd.conf                | syslog /var/log/dhcpd-debug.log     
named      | /etc/named.conf                     | syslog                              
tftp       | /etc/xinetd.d/tftp                  | syslog                              
qpidd      | /etc/qpid/qpidd.conf                | syslog                              
tomcat     | /etc/candlepin/candlepin.conf       | /var/log/candlepin/ /var/log/tomcat/
pulp       | /etc/pulp/server.conf               | syslog /var/log/pulp-debug.log      
virt-who   | /etc/sysconfig/virt-who             | syslog                              
-----------|-------------------------------------|-------------------------------------