==== columns=3, spacing=10, groups=0 (defaults)
    193,511         87        275
         62     82,754    141,467
      8,612        539      2,314
  8,671,515        134  4,084,420
          5     72,040    796,329
  2,663,250      5,236  3,959,931
      4,850    722,044         56
         73        299  5,443,348
     20,009         79  3,488,428
         27     51,528     78,401
     70,761          1    166,520
     40,743     29,525          4
          7        338    573,586
    255,119    442,298        876
      7,838    145,950    624,561
        756     55,790         68
  8,816,157      3,234      4,802
  1,838,538        389         71
         34     19,636  6,573,222
         27          1          6
         82    408,577     22,055
  4,909,020      1,807          1
    145,345     41,318          6
        611  5,266,397          3
         14          3         26
        789        118  3,726,251
         24     75,271         72
  4,113,528          4      7,943
     52,302    374,188         72
         54        209      2,225

==== columns=5, spacing=9, groups=12 (properties)
   193,511        87       275        62    82,754
   141,467     8,612       539     2,314 8,671,515
       134 4,084,420

         5    72,040   796,329 2,663,250     5,236
 3,959,931     4,850   722,044        56        73
       299 5,443,348

    20,009        79 3,488,428        27    51,528
    78,401    70,761         1   166,520    40,743
    29,525         4

         7       338   573,586   255,119   442,298
       876     7,838   145,950   624,561       756
    55,790        68

 8,816,157     3,234     4,802 1,838,538       389
        71        34    19,636 6,573,222        27
         1         6

        82   408,577    22,055 4,909,020     1,807
         1   145,345    41,318         6       611
 5,266,397         3

        14         3        26       789       118
 3,726,251        24    75,271        72 4,113,528
         4     7,943

    52,302   374,188        72        54       209
     2,225

==== columns=7, spacing=9, groups=12 (properties, env var)
   193,511        87       275        62    82,754   141,467     8,612
       539     2,314 8,671,515       134 4,084,420

         5    72,040   796,329 2,663,250     5,236 3,959,931     4,850
   722,044        56        73       299 5,443,348

    20,009        79 3,488,428        27    51,528    78,401    70,761
         1   166,520    40,743    29,525         4

         7       338   573,586   255,119   442,298       876     7,838
   145,950   624,561       756    55,790        68

 8,816,157     3,234     4,802 1,838,538       389        71        34
    19,636 6,573,222        27         1         6

        82   408,577    22,055 4,909,020     1,807         1   145,345
    41,318         6       611 5,266,397         3

        14         3        26       789       118 3,726,251        24
    75,271        72 4,113,528         4     7,943

    52,302   374,188        72        54       209     2,225

==== columns=8, spacing=9, groups=15 (cmd-line, env vars)
   193,511        87       275        62    82,754   141,467     8,612       539
     2,314 8,671,515       134 4,084,420         5    72,040   796,329

 2,663,250     5,236 3,959,931     4,850   722,044        56        73       299
 5,443,348    20,009        79 3,488,428        27    51,528    78,401

    70,761         1   166,520    40,743    29,525         4         7       338
   573,586   255,119   442,298       876     7,838   145,950   624,561

       756    55,790        68 8,816,157     3,234     4,802 1,838,538       389
        71        34    19,636 6,573,222        27         1         6

        82   408,577    22,055 4,909,020     1,807         1   145,345    41,318
         6       611 5,266,397         3        14         3        26

       789       118 3,726,251        24    75,271        72 4,113,528         4
     7,943    52,302   374,188        72        54       209     2,225


====  columns=6, spacing=8, groups=20 (cmd-line)
  193,511       87      275       62   82,754  141,467
    8,612      539    2,3148,671,515      1344,084,420
        5   72,040  796,3292,663,250    5,2363,959,931
    4,850  722,044

       56       73      2995,443,348   20,009       79
3,488,428       27   51,528   78,401   70,761        1
  166,520   40,743   29,525        4        7      338
  573,586  255,119

  442,298      876    7,838  145,950  624,561      756
   55,790       688,816,157    3,234    4,8021,838,538
      389       71       34   19,6366,573,222       27
        1        6

       82  408,577   22,0554,909,020    1,807        1
  145,345   41,318        6      6115,266,397        3
       14        3       26      789      1183,726,251
       24   75,271

       724,113,528        4    7,943   52,302  374,188
       72       54      209    2,225

==== columns=3, spacing=15, groups=0 (default, env var)
         193,511              87             275
              62          82,754         141,467
           8,612             539           2,314
       8,671,515             134       4,084,420
               5          72,040         796,329
       2,663,250           5,236       3,959,931
           4,850         722,044              56
              73             299       5,443,348
          20,009              79       3,488,428
              27          51,528          78,401
          70,761               1         166,520
          40,743          29,525               4
               7             338         573,586
         255,119         442,298             876
           7,838         145,950         624,561
             756          55,790              68
       8,816,157           3,234           4,802
       1,838,538             389              71
              34          19,636       6,573,222
              27               1               6
              82         408,577          22,055
       4,909,020           1,807               1
         145,345          41,318               6
             611       5,266,397               3
              14               3              26
             789             118       3,726,251
              24          75,271              72
       4,113,528               4           7,943
          52,302         374,188              72
              54             209           2,225

