old_contents: import re
  
  from coalib.bearlib.abstractions.Lint import Lint
  from coalib.bears.LocalBear import LocalBear
  from coalib.results.RESULT_SEVERITY import RESULT_SEVERITY
  
  
  class RLintBear(LocalBear, Lint):
      executable = 'Rscript'
      arguments = "-e 'library(lintr)' -e 'lintr::lint(\"{filename}\")'"
      output_regex = re.compile(
          r'(?P<file_name>.*?):(?P<line>\d+):(?P<column>\d+):'
          r' (?P<severity>\S+): (?P<message>.*)')
      severity_map = {
          "style": RESULT_SEVERITY.NORMAL,
          "warning": RESULT_SEVERITY.NORMAL,
          "error": RESULT_SEVERITY.MAJOR}
      LANGUAGES = {"R"}
      AUTHORS = {'The coala developers'}
      AUTHORS_EMAILS = {'coala-devel@googlegroups.com'}
      LICENSE = 'AGPL-3.0'
  
      prerequisite_command = ["Rscript", "-e", "library(lintr)"]
      prerequisite_fail_msg = 'R library "lintr" is not installed.'
  
      def run(self, filename, file):
          '''
          Checks the code with `lintr`.
          '''
          return self.lint(filename)
  
new_contents: import re
  
  from coalib.bearlib.abstractions.Lint import Lint
  from coalib.bears.LocalBear import LocalBear
  from coalib.results.RESULT_SEVERITY import RESULT_SEVERITY
  
  
  class RLintBear(LocalBear, Lint):
      executable = 'Rscript'
      arguments = "-e 'library(lintr)' -e 'lintr::lint(\"{filename}\")'"
      output_regex = re.compile(
          r'(?P<file_name>.*?):(?P<line>\d+):(?P<column>\d+):'
          r' (?P<severity>\S+): (?P<message>.*)')
      severity_map = {
          "style": RESULT_SEVERITY.NORMAL,
          "warning": RESULT_SEVERITY.NORMAL,
          "error": RESULT_SEVERITY.MAJOR}
      LANGUAGES = {"R"}
      AUTHORS = {'The coala developers'}
      AUTHORS_EMAILS = {'coala-devel@googlegroups.com'}
      LICENSE = 'AGPL-3.0'
      CAN_DETECT = {'Syntax', 'Formatting'}
  
      prerequisite_command = ["Rscript", "-e", "library(lintr)"]
      prerequisite_fail_msg = 'R library "lintr" is not installed.'
  
      def run(self, filename, file):
          '''
          Checks the code with `lintr`.
          '''
          return self.lint(filename)
  
subject: Add CAN_DETECT