"This is a ',' separated string, each objects should be prefixed by " \
"a '+' or a '-' to respectively enable or disable it. The keyword " \
"'all' refers to all objects. Objects can be refered to by their " \
- "type or module name. Rules applying to named objects take precendence " \
+ "type or module name. Rules applying to named objects take precedence " \
"over rules applying to object types. Note that you still need to " \
"use -vvv to actually display debug message.")