Intro.c cleanup
Intro.c cleanup

chock-mostlyharmless/mostlyharmless,chock-mostlyharmless/mostlyharmless,chock-mostlyharmless/mostlyharmless,chock-mostlyharmless/mostlyharmless,chock-mostlyharmless/mostlyharmless,chock-mostlyharmless/mostlyharmless