t / t4018 / cpp-skip-labelson commit regex: -G<pattern> feeds a non NUL-terminated string to regexec() and fails (db5dfa3)
   1void RIGHT (void)
   2{
   3repeat:         // C++ comment
   4next:           /* C comment */
   5        do_something();
   6
   7        ChangeMe;
   8}