Refs #15538: Check for nssdb cert as the beginning of a line

[ehelms]

When using something short and non-specific like 'ca' to grep the
nssdb output, other words in the nssdb can pass the test. For example,

[root@sat-r220-02 ~]# certutil -L -d /etc/pki/katello/nssdb

Certificate Nickname Trust Attributes
SSL,S/MIME,JAR/XPI

amqp-client ,,
broker u,u,u

The 'ca' in 'Certificate Nickname' passes the 'grep ca' test.

[stbenjam]

How about a \b (end of word) too just to be safe?

In the very unlikely event another certificate has the same prefix (catello and ca for example would).

[root@sat-r220-06 ~]# certutil -L -d /etc/pki/katello/nssdb | grep '^ca\b'
ca                                                           CT,C,c

Edit: \b instead of \s

[ehelms]

Updated

[stbenjam]

APJ

[iNecas]

👍 failure tests unrelated

[ekohl]

Tests should pass after a rebase