[datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Parsers now have to implement the `is_deleted(extid, etype, eid)` method that
should return a boolean telling if the given entity exists in the external
source or not.
[MESSAGES CONTROL]
disable-msg = C0301
[VARIABLES]
# Enable / disable this checker
enable-variables = yes
additional-builtins = _, display_name
[BASIC]
required-attributes=
attr-rgx = (w|[a-z_][a-z0-9_]{2,30})
variable-rgx = (w|[a-z_][a-z0-9_]{2,30})$
argument-rgx = (w|[a-z_][a-z0-9_]{2,30})$
[TYPECHECK]
generated-members=debug,info,notice,warning,error,critical,exception