TITLE is duplicated before Grid point force balance in f06

[victorkemp]

eg. bush_12.DAT from Benchmark_2 has 6 subcases, TITLE is ANALYSE and the f06 contains:

 OUTPUT FOR SUBCASE        1
 ANALYSE                                                                                                                                                                                                                                                         
 ANALYSE                                                                                                                                                                                                                                                         
 ANALYSE                                                                                                                                                                                                                                                         
 ANALYSE                                                                                                                                                                                                                                                         
 ANALYSE                                                                                                                                                                                                                                                         
 ANALYSE                                                                                                                                                                                                                                                         
 NASTRAN SPC 1 - FX=1000                                                                                                         
 TEST                                                                                                                            



                                           G R I D   P O I N T   F O R C E   B A L A N C E
                                             (in global coordinate system at each grid)

                                FORCE BALANCE FOR GRID POINT        1 IN GLOBAL COORD SYSTEM        0

Affects versions 16.0.0 to 18.0.0. 15.1.3 is OK.