[tex-k] Web2C: "-parse-first-line" does not work in on-line file prompt.

[Karl Berry]

        $ tex \&plain story
        This is TeX, Version 3.14159265 (preloaded format=tex)
        ...
        if (main_input_file == NULL) {
          if (argv[1] && *argv[1] == '&') dump_name = argv[1] + 1;
        }

I installed your change (r49433). Thanks. -k