When using the command "hit-frequencies -x", the column headers are missing 
a "RANK" column header. Example:  First header is from "-x", Second header is 
from "-x -p"
OVERALL     SPAM      HAM     S/O   SCORE  NAME
  91714    74113    17601    0.808   0.00    0.00  (all messages)
   7431     7429        2    0.999   1.00   3.00  RM_bpt_longwords68a
   6596     6595        1    0.999   0.98   1.00  RM_bpt_longwords69a

OVERALL%   SPAM%     HAM%     S/O    RANK   SCORE  NAME
  91714    74113    17601    0.808   0.00    0.00  (all messages)
100.000  80.8088  19.1912    0.808   0.00    0.00  (all messages as %)
  8.102  10.0239   0.0114    0.999   1.00    3.00  RM_bpt_longwords68a
  7.192   8.8986   0.0057    0.999   0.98    1.00  RM_bpt_longwords69a

Code involved: 
} elsif ($opt_x) {
  printf "%7s  %7s  %7s  %6s  %6s  %s\n",
  	"OVERALL", "SPAM", "HAM", "S/O", "SCORE", "NAME";
  printf "%7d  %7d  %7d  %7.3f %6.2f  %6.2f  (all messages)\n",

2nd and 3rd line should instead be something like:
  printf "%7s  %7s  %7s  %6s  %6s  %6s  %s\n",
  	"OVERALL", "SPAM", "HAM", "S/O", "RANK", "SCORE", "NAME";