GNL
t = GTO | GSUBJECT | GCC | GNL | GSMOPTS;
t &= ~GNL;
GTO | GSUBJECT | GCC | GBCC | GSMOPTS | GNL);
(void)puthead(hp, fout, GTO|GSUBJECT|GCC|GMISC|GMIME|GNL);
(void)puthead(hp, fout, GTO|GSUBJECT|GCC|GMISC|GNL);
if (gotcha && w & GNL)
GTO | GSUBJECT | GCC | GBCC | GMISC | GNL | GCOMMA