I just tried in a fresh install (4.4), and did not get spaces (without any config changes). So it should be possible. But I can't think of which setting may cause this...
I did try, new app. Just did a "FormCreate" method, and completed
1) "Cascade;|" from Cas=> which should really have no space as it will have the semicolon
2) "Caption:=|; " from Cap => which also had no space, not even after the :=
You could try to remove your config files, and see if going to the default will fix it.