HPCC-24686 Update terminology in SysAdmin Guide

Signed-off-by: Jim DeFabia <jamesdefabia@lexisnexis.com>

docs/EN_US/HPCCSystemAdmin/HPCCSystemAdministratorsGuide.xml

@@ -2239,7 +2239,7 @@ dfsSSLPrivateKeyFile=/keyfilepath/keyfile</programlisting>Set the <emphasis
           configuration.</para>
 
           <para>There is a security feature called
-          <emphasis>"AllowUsers"</emphasis> that creates a white list in sshd
+          <emphasis>"AllowUsers"</emphasis> that creates an AllowList in sshd
           (the OpenSSH server process) that will disallow connections from
           anyone not declared on that list. This is not default for sshd,
           rather it is an option that must be enabled. If that option is