Fix up the comment start dash state a bit; now on the third set of tests.
Fix up the comment start dash state a bit; now on the third set of tests.

svn path=/trunk/hubbub/; revision=4369

prepare/netsurf_libhubbub,servo/libhubbub,prepare/netsurf_libhubbub,servo/libhubbub,servo/libhubbub,prepare/netsurf_libhubbub,adamwight/wmf-parsoid-libhubbub,servo/libhubbub,prepare/netsurf_libhubbub,Achal-Aggarwal/hibbub,prepare/netsurf_libhubbub,Achal-Aggarwal/hibbub,adamwight/wmf-parsoid-libhubbub,Achal-Aggarwal/hibbub,adamwight/wmf-parsoid-libhubbub,adamwight/wmf-parsoid-libhubbub,prepare/netsurf_libhubbub,servo/libhubbub,Achal-Aggarwal/hibbub,adamwight/wmf-parsoid-libhubbub