11   FF-Test: FF's at Start of File             V
22   Options -b -3 / -a -3 / ...
33   --------------------------------------------
44 3456789 123456789 123456789 123456789 12345678
55   3 Columns downwards ..., <= 5 lines per page
66   FF-Arangements: Empty Pages at start
77   \ftext; \f\ntext;
88   \f\ftext; \f\f\ntext; \f\n\ftext; \f\n\f\n;
99 3456789 123456789 123456789
1010  zzzzzzzzzzzzzzzzzzzzzzzzzz123456789
111                                       12345678
122                                       12345678
133 line truncation before FF; r_r_o_l-test:
1414 456789 123456789 123456789 123456789
1515 xyzxyzxyz XYZXYZXYZ abcabcab
1616 456789 123456789 xyzxyzxyz XYZXYZXYZ
177                                       12345678
188                                       12345678
199 3456789 ab
2020 DEFGHI 123
211                                       12345678
222                                       12345678
233                                       12345678
244                                       12345678
255                                       12345678
266                                       12345678
2727 no truncation before FF; (r_l-test):
2828 no trunc
2929 xyzxyzxyz XYZXYZXYZ abcabcab
3030 456789 123456789 xyzxyzxyz XYZXYZXYZ
311                                       12345678
322 3456789 abcdefghi
333                                       12345678
34