head : /usr/src/usr.bin/head/head.c /usr/include/sys/types.h \
  /usr/include/machine/endian.h /usr/include/sys/cdefs.h \
  /usr/include/machine/ansi.h /usr/include/machine/types.h \
  /usr/include/errno.h /usr/include/stdlib.h /usr/include/string.h \
  /usr/include/stdio.h /usr/include/ctype.h /usr/include/varargs.h 
