code: def fix_nls(self, in_, out_):
          
          if 0 == len(in_) or 0 == len(out_):
              return out_
  
          if "\r" in out_ and "\r" not in in_:
              out_ = out_.replace("\r", '')
  
          if "\n" == in_[0] and "\n" != out_[0]:
              out_ = "\n" + out_
          elif "\n" != in_[0] and "\n" == out_[0]:
              out_ = out_.lstrip()
          if 0 == len(out_):
              pass
          elif "\n" == in_[-1] and "\n" != out_[-1]:
              out_ = out_ + "\n"
          elif "\n" != in_[-1] and "\n" == out_[-1]:
              out_ = out_.rstrip()
          return out_
docs: Fixes submitted translations by filtering carriage returns and pairing
          newlines at the begging and end of the translated string with the original