old_contents: from rflint import RfLint, ERROR, WARNING
  from parser import RobotFactory, SuiteFile, ResourceFile, Testcase, Keyword
  from common import SuiteRule, ResourceRule, TestRule, KeywordRule, GeneralRule
  
  
new_contents: from .rflint import RfLint, ERROR, WARNING
  from .parser import RobotFactory, SuiteFile, ResourceFile, Testcase, Keyword
  from .common import SuiteRule, ResourceRule, TestRule, KeywordRule, GeneralRule
  from .version import __version__
  
subject: use relative imports