Lintian::Util: correct spelling of "ENCRYPTED"

Fix a typo in the matching of expected delimiters for some
signed messages; thanks Samuel Bronson.

Signed-off-by: Adam D. Barratt <adam@adam-barratt.org.uk>
c/init.d: Fix init.d regex

Signed-off-by: Niels Thykier <niels@thykier.net>