Description of Problem:

secure.conf has a variable "$ignore_services" which is case-insensitive.  The
case-insensitivity is achieved by converting its contents to all lower-case.
The secure script fails to do a case-insensitive match.  This makes it
impossible to exclude a service that puts its name in the log with any
upper-case letters.

Version-Release number of selected component (if applicable):

logwatch-2.6-2

How Reproducible:

Always

Steps to Reproduce:
1. Try to exclude a service in secure.conf (e.g. Pluto) that logs its name with
a capital letter

Actual Results:

The line is not omitted from the secure log.

Expected Results:

It should have been.

A one-line patch to fix the problem is attached.