Looking at a few of the CV's in my ERAS, they all look fine, spacing is not a problem. I wouldn't worry too much about it, the same information is displayed on your CAF anyway, which is what I use (and I expect most other PD's use also).
ERAS clearly has some formatting / spacing issues with it, and I never hold applicants responsible for these. This is especially true in the personal statements. Many people write their PS's in Microsoft word, and then copy and paste them into ERAS (or so I would assume). Unfortunately, MS Word includes many formatting codes and other special characters, which do not translate into ERAS. The classic example of this is the "curly quotes" -- MS Word usually replaces the usual striaght quotes with curly ones, and ERAS ends up replacing these with some other nonsensical character. I ignore all of this stuff.