Bug#374519: splitdigest.1.gz: say correct config directory

[Dan Jacobson <jidanni@jidanni.org>]

Package: splitdigest
Version: 2.4-5
Severity: wishlist
File: /usr/share/man/man1/splitdigest.1.gz

$ man splitdigest |grep lib
the file splitdigest.config ... in the /usr/local/lib directory.
/usr/local/lib/splitdigest.config
$ dlocate splitdigest.config
splitdigest: /etc/splitdigest.config