+ // ChkTeX (as of v. 1.7.7) has the following return values:
+ // 0 = EXIT_SUCCESS : program ran successfully, nothing to report
+ // 1 = EXIT_FAILURE : program ran unsucessfully
+ // 2 = EXIT_WARNINGS : program ran successfully, only warnings to report
+ // 3 = EXIT_ERRORS : program ran successfully, errors to report
+ // We only check for EXIT_FAILURE here, since older versions of ChkTeX
+ // returned 0 also in case 2 and 3.
+ if (result == EXIT_FAILURE)