* src/misc/bareword.hh, src/misc/bitvect.hh, src/misc/escape.hh,
src/misc/hashfunc.hh, src/misc/intvcmp2.hh, src/misc/intvcomp.hh,
src/misc/random.hh, src/misc/timer.hh, src/misc/tmpfile.hh: Use ingroup
rather than addtogroup.