We found the list spool with one blank line in every 10 lines. . It’s because NW740 (SAPKB74010) has an SAP standard FM ‘RSPO_GET_LINES_AND_COLUMNS’. Since the default layout X_PAPER defines lines to 10 and following condition doesn’t meet, lines keep as 10 then spool lists with a blank line in every 10 lines (i.e. 10 lines page):
if lines < 5.
lines = 0.
endif.
In NW 731 the parameter show_realheight is always false line becomes 0. Then the spool doesn’t show the blank line.
if lines < 5 OR show_realheight = abap_false.
lines = 0.
endif.
In order not to show the blank line in spool, one possible solution was to modify the CFI content builder and do not use default layout X_PAPER but use X_SPOOLERR. But this solution probably requires very heavy regression test and I am not sure if worth it or not.
Applying SAP Note 2169148 resolved the issue for us.
Cheers,
Dan Mead