Syntax warning running dbupdater on ubuntu 20

[digitalarchitects]

./sbin/db_updater.py:105: SyntaxWarning: "is not" with a literal. Did you mean "!="?
if not Configuration.includesFeed(source['name']) and source['name'] is not "redis-cache-cpe":
./sbin/db_updater.py:107: SyntaxWarning: "is not" with a literal. Did you mean "!="?
if args.f and source['name'] is not "redis-cache-cpe":
./sbin/db_updater.py:111: SyntaxWarning: "is" with a literal. Did you mean "=="?
if source['name'] is "cpeother":
./sbin/db_updater.py:114: SyntaxWarning: "is not" with a literal. Did you mean "!="?
if source['name'] is not "redis-cache-cpe":
./sbin/db_updater.py:117: SyntaxWarning: "is" with a literal. Did you mean "=="?
if args.f and source['name'] is "cpe":
./sbin/db_updater.py:120: SyntaxWarning: "is" with a literal. Did you mean "=="?
elif args.f and source['name'] is "cve":
./sbin/db_updater.py:129: SyntaxWarning: "is" with a literal. Did you mean "=="?
elif (args.c is True and source['name'] is "redis-cache-cpe"):

Ran sudo ./sbin/db_updater.py -c

[P-T-I]

Absolutely True; will be fixed in PR #451. This PR will be merged once @adulau is finished testing it.